Yep, London rocks!
This reminds me of a pua mate of mine who had one of his closest mates staying with him, for a couple of months. The mate was chatty with guys but had absolutely mind numbing AA when having to deal with girls.
This was getting my mate down as he wanted his buddy to have fun, so what he did was get his camcorder out, gave it to his mate and then hit the streets and they would go up to groups of girls and he would make up some story about how they were Uni students and were doing some "social project" about male/female relationships or something like that!
Anyhow by chatting up the girls and getting them to talk to his mate (via the camera), he found his buddy slowly came out of his shell and he actually managed to get a girls number!
Never underestimate the power of the lens!!