$10 NLHE 6-max: Small pair on a low board. When to give up?

[bgomez89]

PokerStars - $0.10 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 3

Hero (BTN): $10.99
SB: $6.40
BB: $4.80
UTG: $4.84
MP: $8.23
CO: $9.85

SB posts SB $0.05, BB posts BB $0.10

Pre Flop: ($0.15) Hero has 6:spade: 6:diamond:

UTG raises to $0.30, fold, fold, Hero calls $0.30, SB calls $0.25, fold

Flop: ($1.00, 3 players) 5:heart: 3:diamond: 2:club:
SB bets $0.40, fold, Hero calls $0.40

Turn: ($1.80, 2 players) 7:spade:
SB bets $0.60, Hero calls $0.60

River: ($3.00, 2 players) 2:spade:
SB bets $1.00, Hero

ok so obviously i called preflop to set mine but once the SB decided to donkbet and the original raiser folded i was stuck on the call button. SB is running 67/14/45afq. I felt that the SB could have a higher middle pair, sets, a 5, or overcards. When should I have give up or do I call the river?

 

[JMcCabe]

I'm calling here all day. He's laying you 4:1 and will often show up with A5, 56, 54, 53, or 4x. No flush draws came in, the str8 draws missed and the 2 on the river counterfeited a flopped two pair.

You played a small pot with a small hand and will be ahead often enough to warrant a call. Well played imo.