This has become my recent pet peeve, so I feel obligated to share...
In a tourney, when one player is all in, and has two or more callers...please, please PLEASE check around to the flop unless you have the absolute nuts!
Here's the rationale...the idea is to knock out the opposing players until you're the only one left, correct? Way too often I've seen it get checked once, and then someone with a weak or even no hand raise, causing a slightly better hand to fold. Then, the all in guy gets to triple up or better, instead of possibly being knocked out.
I'll admit...it took me a while to catch on to this. But I've got it now...and I really hope everyone else can learn this too! It's a solid strategy in tourney format...maybe not so much in a ring game.
So, please...don't be afraid to check!