Freeroll tourney push question

I was at a freeroll tourney at a local bar yesterday. There were about 50 people that entered and top 3 get gift certificates as prizes. Anyway, there are about 25 people left now, I have 1600 chips, and blinds are 100/200. I get KQo UTG. 7 People at my table. What's my best play? Standard raise, push or fold?

Also, I've played in a bunch of local tournaments like these before (~$20) buy in and it always seems like I play tight but the good cards don't come and I always end up having to wait until the blinds go up and start going all in to try and double up. What's the best way to tackle these? Am I just not getting good cards because of variance or should I be more agressive with weaker holdings when the blinds move up relatively quickly and the people at the tables are dealing so it goes even slower because of that?