Bud. Right mouse button or escape opens save menu. It works like that in every VN game as far as I know.
It would quite fit with the patronizing attitude toward MC present in the game. I have also in one of my demo playthroughs tried playing super shy boy who got a hard time talking to strangers, so I like your idea.
I know it's a bit late for the answer but cant't you just pledge her your service after calling her hot or something?