UniBet 6-handed table, I was new to the table and effective stacks were 100bb

Hero is UTG - AcKs

hero raises 3x and it folds round to BB who calls

Flop
pot ($0.65)
2s 3h 7s

BB: checks
Hero: bets $0.38
BB: raises to $1.26
Hero?

I c-bet to try get value from all his floats. I was confused by the x/r as its a very dry flop, apart from the spade flush draw. Is this an easy fold and wait for a better spot. Would you be checking back the flop or c-betting?