I think this might be my first hand history on this forum, so go easy on me :D

Villain was running 63/4 over 30 hands.

My thoughts - I think this is pretty clearly a fold as i dont see him doing this with any sort of draws. It is possible he has sets and straights here though sometimes, though even a lot of fish will slow down once a scare card hits. I think the fact that we are deep pushes this even further toward a fold. thoughts?

Poker Stars, $0.10/$0.25, $0.05 ante No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

SB: $49.09 (196.4 bb)
Hero (BB): $64.15 (256.6 bb)
UTG: $63.40 (253.6 bb)
MP: $27.70 (110.8 bb)
CO: $62.50 (250 bb)
BTN: $80.46 (321.8 bb)

Preflop: Hero is BB with 7d 9d
2 folds, CO raises to $0.62, BTN folds, SB calls $0.52, Hero calls $0.37

Flop: ($2.16) 9s 8d 5d (3 players)
SB bets $0.75, Hero raises to $3.09, CO folds, SB calls $2.34

Turn: ($8.34) Kd (2 players)
SB checks, Hero bets $5.25, SB raises to $14, Hero???