The first day is a whirlwind of introductions and meetings. You'll meet four different people named Dan, receive a phonebook-sized packet of information about your healthcare plan and be walked through the simple 30-step process for clearing a paper jam in the copy machine.
Take notes; you'll thank yourself later. If you're a whiz with your handheld, jot notes electronically. Otherwise, invest in a small notebook that you can stick in your pocket and pull out when your cubicle mates start explaining where all the good burrito joints are. Names and positions are probably the most important notes to take. People like to think they're memorable enough for you to remember their name, so indulge them.