6max 100nl
effective stacks are 110 bb
Villian was 57/52/5 over only 100 hands
He bluffed often every street including the river. Thats why I just called preflop.

Preflop:
Dealt to Hero AK (button)

Villian raises 3.50$,everybody folds, Hero calls,sb and bb folds
*** FLOP *** [J 9 7] Pot: 8.5$
Villian bets 5$, Hero ???

I have an additional question: Is it okay to just call with AK preflop versus an average villian from time to time for deception value?