1) Don't do too many things on your computer (not too much multi-table playing, included)...stay focused on your opponents.
2) If playing live, do not get too friendly or chatty with other players; you may be giving away
tells or valuable info.
3) Have a plan...how many days you will play, how many hours each day, how much
bankroll to start each day.
4) Divide your bankroll in half to start; I once had a $200 starting bankroll, but only bought in for $100....lucky; first hand lost all in with pocket aces. I had the second $100, and ended the session up $35 overall, which would not have been possible if I started with the entire $200 bankroll.
5) Play your mediocre cards very carefully...there are too many "chasers" out there especially in low limit games. Play your premium
hands with courage and strength...don't get stuck losing with KK, QQ, AK because you slowplayed or were too timid to bet aggressively.