advice on party MTT hand

[chipnchair33]

this was the very first hand of this tournament, so I'm pretty sure that folding was the correct move. Does anyone have any advice on how I could have played it differently preflop or on the flop?

Blinds 15/30
everyone has T1000

Hero in BB has K /images/graemlins/spade.gif Q /images/graemlins/spade.gif
UTG raises to 30
MP1 calls
MP2 calls
Hero calls 15

Flop comes:
A /images/graemlins/spade.gif K /images/graemlins/diamond.gif 7 /images/graemlins/spade.gif

Hero checks
UTG bets 100
MP1 folds
MP2 calls
Hero calls

Turn: Q /images/graemlins/heart.gif

Hero checks
UTG checks
MP2 goes all in

Hero folds
UTG folds

In retrospect I think i should have bet on the turn, but it was the first hand and I had no feel for the other players, so I played it tight.