An under the tongue or in the ear thermometer since they are pretty self explanatory or a forehead thermometer if the ears are sensitive.
Answer:
Just ignore her/him and don't talk with her
Dopamine is a reaction in the brain that causes desire.
I'd say none of the above! If you're planning for yourself you'll want to choose foods you like. It's imperative that in planning meals for anyone you consider their allergies, you don't want to kill them! Your available finances are also important, if you can't afford to go to a fancy restaurant, don't!