[NoahSD]

Flop check is good... I assume the table's 9-handed so after he opens UTG there's no value in betting this flop, but there's value in checking and then betting turn.

Turn is obv standard.

I like a call on the river. He could have Kx or 6x. Sometimes he has Qx, but a pretty high % of the time he has XX and is just betting because you showed weakness and the river brought a scare card.

Edit: plus he also checks Qx and sometimes even Kx.