QQ played too passively?

Villain is a relative unknown.

Hand converted with online PokerStrategy.com hand converter:

Play hand

$0.02/$0.05 No-Limit Hold'em (9 handed)

Known players:
[tg]BU$12.45:///////;SB$8.69:///////;BB (Hero)$5.05:///////;UTG1$5.69:///////;UTG2$10.42:///////;MP1$9.13:///////;MP2$1.78:///////;MP3$4.91:///////;CO$6.19:///////;[/tg]

Preflop: Hero is BB with Q:c, Q:h.
UTG1 folds, UTG2 raises to $0.15, 6 folds, Hero calls $0.10.

Flop: ($0.32) A:d, 6:d, K:c (2 players)
Hero checks, UTG2 checks.

Turn: ($0.32) 7:s (2 players)
Hero bets $0.20, UTG2 calls $0.20.

River: ($0.72) 3:h (2 players)
Hero checks, UTG2 checks.

Final Pot: $0.72.

Results follow:

Hero shows a pair of queens(Qc Qh).
UTG2 shows a pair of tens(Td Th).

Hero wins with a pair of queens(Qc Qh).