Ok...
You're at a restaurant, you're already cranky (because guys get cranky when we don't eat for a few hours), and all you can think about is tucking in to the artery-clogging special you just ordered. When it arrives, your date goes "Mmm... that looks really good" and then does the frowny-face at her own plate. "I should've ordered that!"
You sigh, and tell her she's welcome to order one. "No, that's ok - I'll just share yours!" she chirps, irritatingly.
Or worse yet... while you're tearing into your steak, she stares longingly at you the entire time. When you ask what she's looking at, she scrunches up her nose and gives you the "You're cute when you eat!" bullshit.
Thankfully, my wife engages in neither of these extremely off-putting activities.