Is that a signature or scribble Leo? DiCaprio produces illegible autograph for fans while visiting Edinburgh cafe for the disadvantaged

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With more than 20 years of fame under his belt, perhaps Leonardo DiCaprio has become a little tired of producing a proper signature for autograph hunters.

And judging by the scribbled piece of penmanship he produced on Thursday, he has developed a speedy way of signing.  

The Hollywood A-lister met with fans as he lent his star power to a good cause, by raising awareness of homelessness in Edinburgh.

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Scribble or signature? Leonardo DiCaprio produced a rather illegible autograph on Thursday as he arrived at the Home restaurant in Edinburgh 

Initials? It was unclear if the actor was writing his name or something else... 

Continuing his humanitarian work across the pond, the Oscar-winning actor was invited to visit Home eatery in Queensferry Street, a restaurant with a social purpose.

Naturally, the Wolf Of Wall Street star, 42, caused quite a frenzy during his first visit to Scotland as he waved and signed autographs for fans who lined the streets. 

However, it was unclear whether he was writing his full name of his initials on one fan's notebook as he made his way along a line of waiting onlookers.   

Signing pictures: He stopped to sign autographs for the waiting crowds 

Sharing a bite: Leonardo DiCaprio was seen leaving Home Restaurant on Thursday morning, we he met and fed homeless people

Hundreds of fans braved cold and wet weather to greet Leonardo when he stopped for lunch cooked by four staff who are all from backgrounds of homelessness.

The Revenant actor arrived at the restaurant in a people carrier and stepped out to cheers from fans, many of whom had been waiting for several hours to catch a glimpse of him and take photographs.

He stood for a couple of minutes at two pens set up on the street to sign autographs for some of the gathered enthusiasts. 

Quite a crowd: The actor caused quite a stir with his charitable visit

There's no place like... The actor has fans lining the streets near Home restaurant

Queuing around the block: Police were called to co-oridnate the fan frenzy

DiCaprio made no comment to the waiting media as he shook hands with co-founder Josh Littlejohn and went inside the building.

Home is a new establishment set up by Littlejohn and Dean Gassabi, who owns the Maison Bleue restaurants.

Social Bite co-founder Josh said: 'It was such an honour to have Leonardo DiCaprio visit our brand new restaurant, Home.'

The restaurant, which is a joint venture between Social Bite and a local restaurant group Maison Bleue, aims to provide a great restaurant experience whilst at the same time giving customers the chance to 'Pay it Forward' for the homeless.  

All eyes on Leo: The Hollywood actor gave a wave to the crowds on his exit

Charming: Leo was golden and gorgeous with a delighted wave for the crowd

'Homeless people are then invited in every Monday to dine with dignity, as well as being offered job opportunities to help break the cycle of homelessness. 

'For Leo to choose to highlight this initiative whilst in Scotland is very humbling and we are grateful to him for raising the awareness.'  

It was set up to provide training and employment for members of the Social Bite Academy, a four-year paid course for homeless people.

On the day, Biffy Mackay, Sonny Murray, Colin Childs and Joe Hart all helped prepare the lunch alongside acclaimed chef Dean Gassabi from Maison Bleue and Home. 

What a mighty good man: Looking slick in his dark coat, Leonardo was charming

Well groomed: He kept his hair neat and his facial hair well cropped

Home: The restaurant is owned by Social Bite

Showing his face: Leonardo was greeted by entrepreneur Josh Littlejohn

With the chefs: Four staff who are all from backgrounds of homelessness, Biffy Mackay, Sonny Murray, Colin Childs and Joe Hart, all helped prepare the lunch alongside acclaimed chef Dean Gassabi from Maison Bleue and Home

Biffy McKay, who was homeless for five years before joining Social Bite, said: 'When you are homeless people don't look at you, they look through you. 

'I didn't feel like person back then, I felt invisible. Now I have totally turned my life around and it has given me such a big confidence boost to cook lunch for Leo DiCaprio. I have loved him since I was little girl, it's a dream come true.' 

Sonny Murray, Social Bite employee, said: 'Three years ago I was begging and used to come into Social Bite for free food. I had a baby daughter on the way at the time, and wanted to get a job. 

I didn't have many prospects at the time, I was in and out of prison and taking drugs. They took a chance on me and I grabbed it with both hands.  

Catching a glimpse: Camera phones were held aloft to catch a glimpse of the star

Pen in hand: He was due to sign a lot of autographs for the admirers

I still have a full time job and to have just cooked lunch for one of the biggest movie stars on the planet Leo DiCaprio is something I'll never forget.' 

Colin Childs, Social Bite employee, said: 'I used to beg in Edinburgh for five years, then I sold the big issue for another seven years. 

I have now had a full time job in Social Bite's central kitchen for the last four and a half years and I have just moved in with my girlfriend. 

To have the experience of cooking lunch for such a big star is class and something to add my CV!'  

Humanitarian: Leonardo is known for his charitable work

Feeling the chill: Leonardo will not be used to the seasonal chill in Scotland

The visit sees the Wolf Of Wall Street actor follow in the footsteps of fellow movie star George Clooney, who met staff at a Social Bite sandwich shop in Edinburgh last year before making the keynote speech at the awards ceremony. 

Social Bite has cafes in Edinburgh, Glasgow and Aberdeen which operate the same 'pay forward' scheme and employ a number of people who have previously been homeless.

Clooney's visit to the Edinburgh Rose Street branch made worldwide headlines, while the Duchess of Cornwall has also popped in on a royal trip to support Social Bite's work.

Leonardo's charitable work is far-reaching, but his most recent project was an environmental documentary called Before The Flood. 

Star support: The visit follows on from George Clooney's support for Social Bite, which he demonstrated during a visit to the cafe in November 2015

Meeting the fans: Fellow Hollywood actor George stopped for pictures and autographs too

In his new documentary the Hollywood megastar, who won this year's best actor Academy Award for his role in The Revenant, takes viewers around the world to meet experts and politicians in order to reveal the scale of climate change, the consequences of inaction and potential paths towards a solution. 

From the remote Canadian landscapes where he shot The Revenant, to the suburbs of Beijing, Greenland, Indonesia's Sumatra and the Pacific atolls of Kiribati, DiCaprio whizzes round the planet to see the extent of the damage.

DiCaprio shows viewers the effects of pollution in China and examines the sea levels which threaten tiny island communities and the longer-term effects of deforestation.

The actor, who has been named a United Nations 'messenger of peace' on climate change, attacks giant corporations and politicians -- especially Republican presidential nominee Donald Trump -- for their stance on climate change.

His own charity, The Leonardo DiCaprio Foundation, established in 1998, focuses on wildland conservation, climate change, indigenous rights, marine conservation, innovative solutions and public advocacy.