Any value in calling the river here?

[shant]

First hand at table so no reads.

Party Poker 3/6 Hold'em (10 handed)

Preflop: Hero is CO with A/images/graemlins/spade.gif, K/images/graemlins/club.gif. Hero posts a blind of $3.
UTG folds, UTG+1 calls, UTG+2 folds, <font color="CC3333">MP1 raises</font>, MP2 folds, MP3 folds, <font color="CC3333">Hero (poster) 3-bets</font>, Button folds, SB folds, BB folds, UTG+1 calls, MP1 calls.

Flop: (10.33 SB) 5/images/graemlins/club.gif, 2/images/graemlins/club.gif, Q/images/graemlins/club.gif <font color="blue">(3 players)</font>
UTG+1 checks, <font color="CC3333">MP1 bets</font>, <font color="CC3333">Hero raises</font>, UTG+1 folds, MP1 calls.

Turn: (7.16 BB) 7/images/graemlins/spade.gif <font color="blue">(2 players)</font>
<font color="CC3333">MP1 bets</font>, Hero calls.

River: (9.16 BB) 2/images/graemlins/diamond.gif <font color="blue">(2 players)</font>
<font color="CC3333">MP1 bets</font>, Hero folds.

Final Pot: 10.16 BB
<font color="green">Main Pot: 9.16 BB, won by MP1.</font>
<font color="green">Pot 2: 1 BB, returned to MP1.</font>

Before his river bet, he hesitated. I don't value online tells like this, but I almost called. Should I have?

[thirddan]

what hand that he stop/gos and prevents giving a free card to can you beat?

The only one that come to mind iis AcJ...