The workers there are all nice. Almost to the point of them being weird. But you don't have to get anything. The workers don't bug you unless you push the help button.
Eat without buying food. Yes you can and many do.
It is totally acceptable to just watch a movie. I have done it multiple times and everyone treats you the same.
Very few people ordered food when I was there (which was pretty good food, BTW). You can also use the outer area to eat/drink without buying theater tickets if you want. The food wasn't entirely expensive, but and cheaper than other theaters.
You can just use the theater. The workers only come by if you push the button to call them. I doubt they will give you any looks, I was ignored when I went and had to push the button several times to get service. You should be fine
We have gone and not ordered food. No issues and no nasty looks
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