Originally Posted by Pseudonym
I think his range is mostly trip 8s and missed draws (and a few hands that beat us). I'd expect an unknown to usually value bet an 8 when checked to, so I'd check-call here because it will also give him a chance to bluff his missed draws.
Edit: I guess this allows his pair and draw hands like 9T to check back but I'm not sure how much they'd call on the river anyway - I guess it comes down to his bluff frequency with missed draws versus his stationing frequency with top pair.