Well... that depends really on who I'm with. First I would ask my partner what it is that they like to do. I would keep this in mind. Depending on whether my partner was interested in sponteneity VS knowing that she will have a good time, either I or we both would make the decision on what to do.
I don't believe in making decisions for your girlfriend. I believe in a balanced decision made by two intellegent individuals. This creates more harmony in the long term. Additionally, I believe in good manners. I wasn't raised that way... I developed these manners myself for the most part. I am very chivalrous and polite: I will help you, and pull out your chair for you, I will open doors, etc... but when it comes to the check, I won't quibble about sharing the responsibility, not including special and intimate moments. ~_^
If you like what you've heard, message me, and we'll see where it goes! ^_^