I like it when a guy opens the door for me. Very polite on his part and if he continues to do little things like that for me it encourages me to treat him even better every time I see him.
When ever someone holds a door open for me I say thank you. (Even at 5:30 am at the gym and I am not a morning person it is just polite to say thanks.)
On a date I like it is kind of old fashion I know but sweet. I don’t expect the guy to do it but if he does I am always impressed.