Some Hand : Hand Analysis

I have 6 and 4, you will fold ar call? I finking that anyone have straight or flush, and I will lose with 2pairs but meybe I need looked river?


ANTES/BLINDS
NEO_PZDC posts blind ($0.10), castro080 posts blind ($0.10).

PRE-FLOP
Sheilok calls $0.10, jyves calls $0.10, Jackazz90 folds, airfro folds, tibmania calls $0.10, francois43 calls $0.10, enculeitor calls $0.10, NEO_PZDC checks, castro080 checks.

FLOP [board cards: 9D,4D,6D ]
NEO_PZDC checks, castro080 checks, Sheilok checks, jyves checks, tibmania checks, francois43 checks, enculeitor checks.

TURN [board cards: 9D,4D,6D,8S ]
NEO_PZDC checks, castro080 checks, Sheilok checks, jyves bets $0.30, tibmania calls $0.30, francois43 folds, enculeitor calls $0.30, NEO_PZDC folds, castro080 folds, Sheilok folds.

RIVER [board cards: 9D,4D,6D,8S,4H ]
jyves bets $0.30, tibmania calls $0.30, enculeitor calls $0.30.

SHOWDOWN
jyves shows [ TD,TH ]
tibmania mucks cards [ TC,8D ]
enculeitor mucks cards [ AH,9S ]
jyves wins $2.40.

Last week I lost 20$ with Ts7h at the cash table, I was a big blind. On the flop 6hTh7s,I raised 3.5$ and two players called, turn was some low card don't remember and it wasn't a heart, I raised 3.5$ again, both called, river is 2s. One guy calls 14$ and I'm all in, other guy folds. He shows me a set of 6

In your situation I wouldn't have checked on the flop because even if someone got Ad or Kd or any other diamond he can catch a flush and the game is over.

one of my hand too:
Dealt to NEO_PZDC [As], [8c]
paidro calls $0.20.
241024 folds.
auzy folds.
Bettina folds.
Mr.green folds.
kolio21 calls $0.20.
Pivotronic checks.
NEO_PZDC calls $0.20.
granma_sugar calls $0.10.
er1k checks.
**** dealing flop **** [5s], [Ah], [Kh]
granma_sugar checks.
er1k checks.
paidro bets $0.20.
kolio21 calls $0.20.
Pivotronic folds.
NEO_PZDC raises $2.10.
granma_sugar folds.
er1k folds.
paidro calls $1.90.
kolio21 folds.
**** dealing turn **** [6s]
paidro checks.
NEO_PZDC bets $2.
paidro calls $2.
**** dealing river **** [Kc]
paidro bets $9.70.
NEO_PZDC folds.
paidro mucks.
I know he had king, but meybe I need call much after flop or turn?