I think it's so nice when guys open the door for me. Especially strangers who will hold a building door for me. I'm not as impressed with guys opening car doors because like Darktooth said, that usually just means he's trying to get into your pants! But if it's a new guy I'm dating, if he doesn' do it, that tells me that he has no manners at all...That's why I like it better when strangers do it, since they will probably never see you again, they are being genuinely nice! Or just trying to get a glimpse of your ass. lol.