If u have high stack just play anithing. The site (pokerstars or 888poker) will make sure that u'll won
I had to limp with 9-2 memories and I hit full on the flop, my face of surprise to see this was amazing haha, I could not believe. Also in CG I played flush with 7-3 and when the player went all in he had AA in hand and wanted to die lol
But NEVER EVER SHOW your trash cards!!!