Following the veteran entertainer's death last week, they have shared some of their best photos.
The friends met at university in Brighton and started "doing a Brucie" when posing for photos on nights out. Their homage to the great man went global when they travelled to the Roskilde music festival in Denmark after graduating in 2007.
"That trip was where the whole idea of taking these photos in various locations around the world came from," says Joseph Bradfield, 31.
"We did it a lot through our university days when we were out drinking, but that trip around Europe after graduating, we pretty much took one everywhere we went.
"It became a bit of a thing whenever there was a photo op. It would be, 'Look at the camera, smile, now pull a Bruce.' It just snowballed."
Perhaps the best "thinker" tribute was staged when one of the group, Jeremy Dresner, got married in Canada.
The friends often attract confused looks when striking the pose in countries where Sir Bruce wasn't a big star, Joseph says.
"You do it in the UK and people kind of know what you're doing. They still don't really know why you're doing it but there's at least that glimmer of recognition.
"But whenever we've done it overseas there's always puzzlement on the locals' faces."
Joseph says the friends - about 10 in all - admired Sir Bruce's approach to his career as well as being fans of his TV shows.
"There's that quote where he said, 'I don't see myself as a singer or a dancer or an actor. I'm an entertainer,'" Joseph explains.
"That really resonated with us, that approach to life, that you don't have to be the best at any one particular discipline but it's all about the impact you have on other people and entertaining other people."
The friends decided to gather the photos after the news of Sir Bruce's death broke.
"It's been quite an operation of digging through Facebook photos to find everything," Joseph says.
"The second the news happened last week my phone lit up with the Whatsapp group we're all part of saying, we really have to do something with this trove of photos."
Follow us on Facebook, on Twitter @BBCNewsEnts, or on Instagram at bbcnewsents. If you have a story suggestion email entertainment.news@bbc.co.uk.

Royal Borough of Windsor and Maidenhead spent Â£160,000 trying to move 10 caravans from Shurlock Row, Berkshire.
Those occupying the land lost appeals and finally a judicial review bid to remain at the site in 2016.
The authority said the group had now left voluntarily and an order imposed to restore the site to its original condition within 28 days.
Councillor Derek Wilson said residents in the area had been "waiting for this day".
He added: "The occupiers were in breach of planning control and we followed every procedure correctly to get to this point as swiftly as was legally possible."
Grass had been paved over and machinery installed without planning permission following the group's arrival in December 2009, the council said.
An enforcement notice was issued ordering them to stop using the land.
The travellers lodged an appeal in 2010 which was unsuccessful and they were given until February 2013 to leave but failed to do so.
After another unsuccessful appeal, they applied for a judicial review.
This was refused by the High Court, the Court of Appeal and finally the Supreme Court in August 2016.
Among Sir Bruce Forsyth's biggest fans are a group of friends who worshipped him so much that they have recreated his famous "thinker" pose wherever they have been around the world for the past decade.
[NEXT_CONCEPT]
Travellers who sparked a Supreme Court legal battle by pitching at a site for more than seven years have left.