How can I make my personality more individual an stand out? ?

I know you can't change who you are but I feel like I have nothing about me at all apart from I'm nice and caring (but you can't show that in every or most settings with your friends). I think maybe if I put on a bit of an act for a while I'll find what's really me but how or what do I change? .... I know that your friends should like you for you but I want them to appreciate me and like me as much as I do them. These are life long friends and are irreplaceable so please don't say get new ones :) how can I make enough of an impression so that they even realise I've left a club/bar lol x