I totally agree with all the above posters! Excellent advice, girls
. Remember to only wear what you're comfortable in - it's so funny sometiems to see someone trying to look "suuuuuave" in a leather jacket when he just looks like he's trying too hard, lol.
My favorite look though? The classic, polished look that has been mentioned in the above. The SoCal style that Sunny mentioned is also great...though I'm from NorCal.
My personal favorite colognes for guys: Givenchy Pi and Coolwater. MMMMM. But don't drench yourself with it - there's nothing sicker than cologne-overload!