raise flop bigger is most important part of this hand.
then you can jam turn cos pure.

as played, meh, about $1.42 into $4.80 after rake right? so you need to be good about 30%. And it's his first hand. Q9/79 maybe just enough for this to be a call, it's close. He'll have a flush over half the time, that's not the issue. Will he have it over 70% of the time is the important question. Fold isn't terrible. But i doubt i fold.