PokerStars No-Limit Hold'em, $1.00 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

CO ($96.50)
Button ($99.20)
Hero ($99)
BB ($64.10)
UTG ($41.40)
UTG+1 ($78.20)
MP1 ($76.60)
MP2 ($49.55)

Preflop: Hero is SB with Q, K.
3 folds, MP2 calls $1, 2 folds, Hero completes, BB checks.

Flop: ($3) 7, K, Q (3 players)
Hero bets $3, BB folds, MP2 calls $3.

Turn: ($9) 6 (2 players)
Hero bets $6, MP2 calls $6.

River: ($21) J (2 players)
Hero checks, MP2 bets $20, Hero ???

---

Villian is 20/5/2.75 over 120 hands.

How do you like the play up to the river, and do you call the river?