u can choose to fold /call/raise. Its $4.5 put on the pot. Think about it. U can call and it might cost u all the money.But yr hand wasnt the best hand on that board, so can fold and wait for another chances.
Lets say u call here, then u will face up another bet on turn and river.But the 2 cards out didnt make yr hand. Hehehe, its all yr decision.
Pay per view man