Twitter is a bit like a pub where all the drinks are free. To get your free drinks you are required to tell everyone in the pub what you are having, as well as anything else that pops into your head.
Despite the free beer, all that shouting can get a bit oppressive. There is a hard core of locals, and they are a rather odd bunch. It's not like they stop and stare at you when you walk in, it's actually worse than that. They carry on shouting at each other and rudely ignore your very existence.
