If I'm at a restaurant looking at the menu it's because I'm doing something out of the ordinary. Maybe I'm on holiday, or I'm treating myself (or someone else), or celebrating. In any case I don't really care about calories, I'm there to enjoy myself. I'm not going to not order the meal I want because it's a few hundred calories more than the celery salad.

The rest of the time I eat healthily enough that one night off probably isn't going to harm me.

I care about calories very much, I have found it an effective way to manage my weight.

Calories, Carbs, Protein, Fat (Saturated vs. unsaturated & Trans).

Maybe marking high-sodium foods, foods containing nuts, foods containing Phenylalanine (ie major/common/severe allergens)

A simple one might be avg serving size (weight)

I actively don't want to see calories on the menu. It is just annoying. Sure, tell me if I ask, but don't push it in my face.

I don't want to see anything else on the menu. All I want to know is what the dish is called, what food it is, and how much it costs.