Submission would work, but not really surrender. The gaze just makes 'em more agreeable, hence why I chose acquiesce (to consent or comply passively or without protest).
treasure? in 2E (haven't looked at the 1E list, but i'm sure it's very similar), type U was: 2-16 gems (90%); 1-6 art (80%), any 1 magic item (70%)
so actually, no coins at all then.
Edit: in 1E, the gems were 10-80, the art was 5-30, plus one of each type of magic item excluding potions and scrolls! the percentage chance to possess was the same, though.