George, 26, won the second series of the ITV prime-time show in 2008, and since then he has gone on to act in Waterloo Road and Mount Pleasant.
For the Dancing Town event, George hosted two workshops on the Mandela Gardens on Wednesday, in addition to performing at the Showtime Event.
George said: “I was delighted to take part in this event because I love the opportunity to teach what I know. The workshop I did was a dance routine that has been performed on live TV and it gave them the chance to experience what we do and how we position ourselves for TV.
“I’ve always been happy to teach. I was actually the youngest dance teacher in Manchester at one point before I went on Britain's Got Talent.
“I loved watching the kids put so much effort into their performances and giving it beans, which means going for it.
“The freestyle is a chance for them to express themselves and show off what they can do and it’s such a wonderful thing to watch and that’s why I love what I do.
“I have a lot of exciting things coming up over the next few months but I will always make time to teach at workshops. Dancing is a big part of my life and I love passing hints and tips on.”