Had the easiest bluff of my life yesterday

Was in a pretty soft live game yesterday and got the easiest bluff spot i've had in a long time. I was late with seven-deuce offsuit, flop came eight-six-four and the blind put out a small bet. I called. He'd been playing pretty straightforward, so i had him on a middling pair or a draw, and that flop seemed to miss a lot of the hands he'd raise from there.

Turn was another six and he checked. I bet bigger, trying to make it look like i wanted a draw to call. He took his time, looked at me, then called (i wasn't sure if he was thinking about raising or just trying to get to showdown).

River was an ace and he checked again. I shoved and he folded face up with pocket nines. He'd called the turn with a pair, so it wasn't quite the perfect read i thought i had in the moment, but the river was a pretty bad card for him to bluff catch with.