i usually just randomly jump into a conversation, and generally be around people that dont like me, and just force my way into whatever they are talking about! :lol:
argue with someone until they're upset, and then agree with them and refuse to continue the arguement. You have to do it in a way that lets them know you don't really agree for the effects you want.
When you are at a long queue at a checkout break wind loudly and then turn around and stare at the person behind you and start muttering under your breath. In no time flat every one is looking at that person and they just not know what to do apart from look very guilty and embarrassed