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?

Fold preflop.
To place in freerolls you want to be ALLIN preflop every time your cards have a slight edge, regardless of blind size. KQ does not have any edge against 7 random hands, and you may be dominated. In the case of UTG 7handed you want to wait for AQ/55 and then jam.
With the blinds really high, if you're shortstacked you should also push-n-pray with crap like 75suited if there's been a bunch of limpers in front of you.
Just my $0.02
As for how to beat $20 tourneys, I'll let someone better than me sound off on that.