If I have a spare moment in London I love watching people on the trains and other places, I am a born and bred London Girl, and I like watching people.
What part of London you from? Unfotunately on the Northern Line tube you dont get much chance to people watch during the commute because youre squished and squashed like a tin of sardines. You have to spend most of your time being careful not to bump or brush into someone and being accused of frotteurism (or whatever they call it)