PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (7 handed) from (Format: Bet The Pot)

CO (t19844)
Button (t6862)
Hero (t10185)
Villain (t7318)
UTG (t7970)
MP1 (t11288)
MP2 (t9615)

Preflop: Hero is SB with , .
5 folds, Hero raises to t600, BB =#A500AF(Villain)/ calls t400.

Flop: (t1150) , , (2 players)
Hero bets t800, Villain raises to t1600,

Now, this opponent had folded enough to allow me to try a steal with my hand. But I have also seen him make more than his fair share of cold calls as well. I don't think he is particularly good based on that and one hand in which he cold called from the BB against a 3 or 4X raise from MP. Flop was 2-5-6, and he called a pot size bet. Turn 3. Check-Check. River blank, Check, push all in from initial raiser, he calls and shows K4o for the win.

What do you after his little raise?

I fold.

4x BB preflop or limp.

On the flop I may call, then call him down if he pansy bets turn but fold to a real bet.