Oh I love this question - and it's so EASY to answer.
A guy should treat the girl he is dating like the goddess that she is.
He should wash her feet - and paint her toenails for her, if that's what she wants.
He should worship her undeniably. Being at her beck-n-call. Always making sure she wants for nothing.
He should give her the remote control while watching tv.
He should A-L-W-A-Y-S strive for the big " O " ....always making sure he rings her bell multiple times. Allowing her to be in full control - reverse cowgirl - or any other style - if that is what she wants.
And last but not least - A guy should always - ALWAYS -
ALWAYS be the one to make the sandwich.
And get his own dang beer out of the frig while he's at it.