$5/10 game at the Rio.
Im prob most active at the table, although not shown down anything too out of the norm etc.game playing smallish, not too many big pots, or anyone getting too ool.
I open Qh9h to $40 from co, bb peels. Guy in mid 40s, recognise him from a previous trip, would describe him as a weak reg. Both playing ~$3k.
Flop:

He pauses and check calls $60
Turn

(pot $205)
He leads $85, I make it $250, he calls quite quickly.
River 10h (pot $705)
He quickly bets $800
Thoughts?