Like I said, its been a while since I played, but here are some general guidlines:
1) High pair, especically good if the pair is higher than anyones door card
2) Any 3 suited (the higher the better)
3) Any 3 to a straight (the higher the better)
4)
[Kc][Jd] is a good hand if the clubs and other paint cards are live.
5) Something like
[9c][9h], but get out quick if you dont improve on 4th street
Theres a good Stud section in "Super System"