Poker Stars $0.01/$0.02 No Limit Hold'em - 9 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com

UTG+2: $2.83
MP1: $0.60
MP2: $5.03
CO: $2.97
BTN: $7.20
SB: $0.98
Hero (BB): $4.23
UTG: $1.84
UTG+1: $6.15

Pre Flop: ($0.03) Hero is BB with A K
2 folds, UTG+2 calls $0.02, MP1 calls $0.02, MP2 raises to $0.12, 3 folds, Hero calls $0.10, 2 folds

Flop: ($0.29) A T 2 (2 players)
Hero checks, MP2 bets $0.12, Hero calls $0.12

Turn: ($0.53) 3 (2 players)
Hero checks, MP2 bets $0.40, Hero calls $0.40

River: ($1.33) 7 (2 players)
Hero checks, MP2 bets $4.39 all in

HERO?!?!!

thanks to check/calling 3 streets you have no idea whats going on. I guess the villain is not a complete idiot cause he atleast raised the right amount preflop. Why dont you 3-bet pre here? I catch myself doing such calls too all the time so lets go to the flop.
Bet/3-bet here please? What were you hoping to flop? Or do a check/raise since the board is pretty dry. The turn is a non-danger card why dont you bet or raise him there? The hand is a complete disaster. As played i am folding this river but you never showed any strengh so i guess it should be a call. You seem to love calling so i guess you did.

As played you have to call. You have an under repped hand, and there are a lot of worse Aces that can take this line. I am fine with calling pre-flop, but a three bet is also good, depending on the villan. Why didn't you check raise the flop? The only hands your afraid of are AA, AT, and TT, and the villan made a very weak bet. Riase it up.

The villan then makes a strong bet on the turn, when a blank card came off. This makes is more likely that they have a single A, and are more confident in the hand because of your check call. Again you only call?

The river shove. As said, I would call. Players are betting like this with the nuts or nothing. Maybe they have AA, but I think AJ is far more likely.

Hey Raist buddy, you havin your period or something?

OP: As everybody else stated, if you show more aggression is some situations it puts you in an easier spot on later streets. If I were you I'd make a conscious effort to try re-raising in similar situations - sometimes they fold sometimes they'll call and sometimes they'll raise you, but at least you'll know whether or not TPTK is good

Reads? If you don't have any, at least put that in the OP.