Pay attention to what cards they pick up. You will usually want to get rid of your big cards unless a large part of your hand is coordinated bigs Besides runs and sets its usually the next best thing to keep
Here is a site (I didn't know that until now, oops) But I would like to share some tips for anyone who is brave enough to try it I used to play poker full time so I was able to pick up on the game quickly. Took me three days of playing quite a lot.
Its pends at level 35 (requirement says level 45).