UTG +1 is fairly passive - I've seen him cold call with a boat on the river. The SB is a mystery, BB is weak tightish.

Preflop: Hero is MP1 with T, A.
1 fold, UTG+1 calls, Hero calls, 3 folds, SB completes, BB checks.

Flop: (4 SB) J, 8, 9 (4 players)
SB checks, BB checks, UTG+1 checks, Hero bets, SB folds, BB calls, UTG+1 calls.

Turn: (3.50 BB) 3 (3 players)
BB checks, UTG+1 checks, Hero checks.

River: (3.50 BB) Q (3 players)
BB checks, UTG+1 bets, Hero raises, BB folds, UTG+1 calls.

Final Pot: 7.50 BB