No reading, new guy, easy call or easy fold?

PokerStars No-Limit Hold'em, $0.10 BB (8 handed) from (Format: FlopTurnRiver)

UTG+1 ($3.65)
Hero ($9.45)
MP2 ($4.60)
CO ($10.05)
Button ($11.65)
SB ($21.85)
BB ($15.20)
UTG ($2.75)

Preflop: Hero is MP1 with A, A.
2 folds, Hero raises to $0.4, 3 folds, SB calls $0.35, BB calls $0.30.

Flop: ($1.20) T, 7, K (3 players)
SB checks, BB checks, Hero bets $1.5, SB raises to $3, BB folds, Hero???

If he's a new guy he must have doubled up quickly

As he covers you I think this is a fold. However because it is 10 NL and you have position a call might be in order to see what he will do next. If he leads out again I'm done with the hand. If a brick falls and he checks, I pot it again and check river after that if possible.

/Cooper

Its SOO COMMON for people to have sets with 7 and T. I need to trust my reading, i get stacked the most by those 7s and Ts the most. Indeed he had TT. I said to myself i would fold if he re-raised when i saw the flop, but UGH i called