Some here in the answers retell the strategy of the game in the tournament, the table of starting hands, but still the question is how you play them. Personally, I always try to see the flop even if it was 3 bet after the flop but if my younger couple is not increased to the set I throw on a bid, and if you've got a set on the flop then play according to the situation if the flop potentially dangerous for me, ie they can collect a bigger set or straight, I go all in to protect your set. Another option is if I know the approximate range of hands with which this or that player will bet 3, namely, if there is a high probability that the opponent will raise with korman AK, then I go all in if my stack is at least twice as large as it is. The chance that he will collect a pair is a little more that I will collect a set or a square.