No reads on villain he just sat down. Spots like this make me puke because it's going to be a chop most of the time, and the times its not I'm dead to KJ. Who folds this?

$0.25/$0.5 No Limit Holdem
6 players
Converted at

Stacks:
UTG ($50.95)
UTG+1 ($50.90)
Hero ($100.05)
BTN ($49.25)
SB ($4.50)
BB ($51.25)

Pre-flop: ($0.75, 6 players) Hero is CO [Qd]
2 folds, Hero raises to $1.75, 2 folds, BB calls $1.25

Flop: [7d][9h] ($3.75, 2 players)
BB checks, Hero bets $3, BB calls $3

Turn: ($9.75, 2 players)
BB checks, Hero checks

River: ($9.75, 2 players)
BB goes all-in $46.5, Hero ???

Yeah prolly muck it.

Why on earth didn't you bet the turn?