Water, unless it's a restaurant with some delicious drink from whatever culture the food is from (Thai iced tea, mango lassi, boba tea - that kinda thing) in which case, that.
In the summer, beer. Ideally an import (unless there's a good microbrewery outlet nearby) because most commercial Chinese beers are terrible. For special events, baijiu. For winter, heated rice liquor.
If I haven't had my daily coffee yet, then a cafe latte. If it's a decent coffee place (barista with fashionably tight jeans, arm tattoos, possibly wearing a Ramones shirt) I'll go for a piccolo. If it's a really good coffee place (barista with waxed moustache and/or ironic neck tattoos) then I'll get a macchiato.
For an evening occasion, I'll generally have a non-alcoholic cider, while debating with people around me whether that's just the same as sparkling apple juice.
After not liking wine (other than iced wine), I had some extra after making some French onion soup and figured I might as well drink it and turns out I like it now. And I've lost my taste for sweet wines. I mean, it still tastes good but I just end up with a headache after one or two glasses from trying a tawny port. It'll probably take some experimentation to find the sweet spot (heh or not so sweet spot I guess).
It's kinda annoying with all the variety, I have a feeling I won't ever get to the point of just being able to buy one kind, so each trip to the store might be a bit of a selection dillema.