The best identity is your own, now depending on occassion dress accordingly but like on a regular night out like clubing theres no need to be in any kind of buisness clothing including ties or suits, youd just look out of place, i mean i rock out a well fitting black white or gray fitted hanes comfortsoft t shirt with converse jeans and a pair of brown leather boots (wolverine brand). honestly theres no real reason to peacock, if your really a confident interesting man you dont need to rely on what you wear to start a conversation with a girl, i see peacocking as kind of a crutch, but if your aiming for a style id go with a bruce willis look like in the link
http://www.imdb.com/media/rm2416679680/nm0000246