Like many sites, PokerStars has an incentives program - the more you play, the "better" your star, starting with silver, then gold, and then platinum. They have various bonuses and freerolls and other promotions offered, depending on the quality of your star. So get to playing - and shoot for platinum!

Some people like to put their picture, or some kind of artwork, or a picture of their child as their "avatar" on PokerStars. You don't have to.

Some also believe that certain pictures give off certain tells. While it may be true, I think enough people try to fake others out that no one really pays attention - so just put whatever you think is cool.