[MRM]

Remember that you are there to work, and while the company wants you to enjoy yourself, be conservative in your on and off work doings. Don't let people egg you into doing stupid intern tricks and don't go overboard taking in the local nightlife. More than one career has been detailed as an intern by too much fun on the first company-sponsored road trip. Work extra hard and be extra quiet on your first work trips and earn the reputation as someone who doesn't play when he's away, and you'll have a great reputation back at home office and later you can start to losen up on the road trip (still within reason) without anyone batting an eye at you.