1. Don't overapologize... it makes you seem pathetic and immature. Act normal and overly cool about it, like "so what". If you don't make a big deal of it, others wont either. and if they try to, ignore them and act like they're over-reacting. At most, apoligize for the behaviour, but never yourself. 2. -read this carefully several times - NOBODY IS GOING TO REMEMBER ANYTHING OR CARE... I barely remember high school and I'm a few years older then you. It just doesn't matter. Nobody gives a shit and you'll seriously probably never see any of these people again. I have literally bumped into like 30 people from my highschool days. When you get to university there will be 20-30,000! people... don't worry about anything, just roll with it