Played cash at Gala Birmingham this evening hoping their £55 bank holiday tournament would lead to recreational cash game line ups. Fresh to the table and no recognisable faces. Villain is aged around mid 50's.
UTG i open

to £8. 5 callers to the flop.
Flop

checks all the way through.
Turn

Check, i bet out £25. Young chinese girl calls, villain hesitates slightly with a short chip fiddle then calls. An initial checker calls.
River

(pot ~£140)
Check, I check (ok?)
Girl checks, then villain last to act fairly quickly stacks his chips and jams for £71.
Fold, comes to me.
You?
I'm mainly unsure with deciding likelihood he has a flush here vs the price we're getting, so just thought i'd get a quick check.