She was in the Army?
Find out what her favorite booze is (this is not as easy as it sounds)
Then buy her a bottle.
That is the standard way to pay an Army Guy back for doing you a solid.
You are not allowed to say "What kind of booze do you like?" or some shit like that. You are also not allowed to ask if she would like a bottle as a gift. The form answer to that is "You don't have to get me anything..."
On the off chance she doesn't drink (Army? I don't think so but I've seen it) then you go the nice meal route.
Both of you are starving students and you can't afford a bottle? Then take her to a liscenced establishment and buy a few rounds instead.
Booze brother, you can't go wrong with the booze.
