We’re at DTD on the 50p/£1 cash tables and the play is pretty tight and passive, so much so that even I have a relatively loose image. I have been using position to take down pots that my cards don’t really warrant.
My stack is £250. Only one player has me covered - the guy to my immediate left. He is a decent thinking player and I would really rather be on his left but unfortunately no seat has opened up giving me the chance to move.
For this hand I am on the button with

There is an EP raise to £4 and one caller. Now, I know I can and maybe should raise here but on a table that loves to call I will be inflating the pot with a marginal holding when I get the expected 4 callers. I elect to call and hopefully use my positional advantage to play out the hand from the flop onwards. I can inflate the pot should the circumstances warrant it.
Anyway, the small blind (decent player who has me covered remember) calls and so does the BB.
We are five handed with £20 in the pot.
Flop is

SB checks, so does everyone else. At these tables the ace is always a scare card as plenty of people play any old bullet. I have middle pair and elect to take the free card.
Turn is

The SB leads out for £18.
Interesting. Folded to me and I flat with my two pair. Perhaps I can and should raise here but for some reason my hand feels vulnerable. I am happy to re-evaluate on the river.
River is

Pot is £56
He quickly bets £66.
Ok, so my hand has now been counterfeited. Any ace beats me, as does any 7.
Hands he could have - small pocket pair, suited connectors that include a 7. Pocket sevens (although less likely and would he lead out with a set here?), a suited ace that is now expecting a chop with the king playing, a hand like mine, maybe even an oddly played AK..
Anyway, he immediately covers his face. He won’t look me in the eye. I take quite a while to decide what to do. I hover my chips over the line and he remains hidden behind his hands.
The overbet looks suspicious but at the same time I am not actually beating much and it doesn’t feel like he is bluffing. It seems the best I can hope for is a split pot.
So, can I find a call here?