A familiar want, to prove oneself. Diana could certainly understand any of those reasons, respect them as a driving force for all she herself didn't seem to need him to prove anything. Steve was Steve, and that seemed good enough for her.

She smiled when he pulled her chair out, settling easily before gesturing to the other chair. "Come. Sit and help me eat some of these."

Permission of a sort as she slid the tin of cookies a few inches in Steve's direction before busying herself with her coffee. A little cream, some sugar (maybe a little more sugar too, though she won't make a big fuss about it) before she sipped and deemed it good.