40 hands 60/30/1.64 vpip

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.15/$0.25
4 players


Stack sizes:
UTG: $23.50
Button: $14.75
Hero: $30.40
BB: $27.00

Pre-flop: (4 players) Hero is SB with
UTG (poster) checks, Button raises to $1, Hero raises to $3, 2 folds, Button calls.

Flop: ($6.5, 2 players)
Hero bets $4, Button calls.

Turn: ($14.5, 2 players)
Hero checks, Button bets $4
...

He has only 3 dollars behind


Ah well and something else:
I pretty often see people play PP and call a CB when they are OOP and only 1 overcard is on board. If they get checked to on turn they bet like 1/3 of pot.
Would you do this and if yes, you do this only with a read?