$16t - Am I the fish?

[kcheel]

First time I have ever posted a hand here, just starting to try and play SNG's seriously. Been playing the $16's on Stars. Don't have the hand history, as I am at work, so this is off memory.

I am headsup with villain. He has around 7.5k, I have around 6k. Blinds are at 400/800 IIRC. Villain completes in the SB, I check with in BB with 3/5s. Flop comes Q,6,4 all different suits, giving me open ender. Villain checks, I push or check for free card?

TIA for any responses. Will post my action in a bit.