QQ in 3bet pot

He's been at the table 19 hands, 21/21 and has 3bet 2 out of 9 chances.

4bet or call pre?

Postflop line?

PokerStars No-Limit Hold'em, $0.10 BB (6 handed) - PokerStars Converter Tool from FlopTurnRiver.com

BB ($14.84)
UTG ($11.43)
Hero (MP) ($10.55)
CO ($11.74)
Button ($5.94)
SB ($10)

Preflop: Hero is MP with Q, Q
1 fold, Hero bets $0.35, 3 folds, BB raises to $0.80, Hero calls $0.45

Flop: ($1.65) 4, 3, 6 (2 players)
BB bets $1.50, Hero calls $1.50

Turn: ($4.65) 8 (2 players)
BB bets $5

I like the call pre, otherwise you isolate yourself with the part of his range that is ahead, you also lessen the likelyhood of him barreling off with missed overs if you 4bet pre.

Readless (which you pretty much are here, although if he's 3bet twice and is 20%ish, he's unlikely to be a complete moron), it's somewhat close, but I basically would just station down here, and shove the river if he checks. Alternatively, I quite like raising the flop - if he shoves, you can fold, if he calls, you are probably ahead and can go from there.

turn is probably a fold with that sizing

Dunno, I think he can have TT JJ as well as AK sometimes, plus maybe other bluffs. I probably call this down, he's 3betting for the 3rd time in just over 2 orbits so he seems pretty aggro to me. I don't think he has KK+ frequently enough here to be folding this. But I could just be talking myself into stacking off when I should be folding.

How active have you been?
If I've been pretty active then I'd be more inclined to play back at him.
Pretty quiet --- then not so much.

4b/felt pre imo. as played i suppose fold turn