How do you speak to your girlfriend?

open your mouth and say whatever you feel is appropriate. Say something that will make her feel hot, say something like "your pretty" or "your beautiful." Don't be shy to tell your girlfriend that she has beautiful eyes. That will make her feel beautiful
ask your girlfriend what they like and if she tells you that they like, for example, cricket, then talk to them about that.

if you mean how to talk to them, then use your mouth!!!

Darling, I am fond of you. May I kiss you on your cheek just to start? What do you do in your home? What do you like to eat best? Do you prefer reading or watching TV, or even sit at the computer and play games ? Which is your preferred discipline in your school ? How about to visit my parents and know them ?

What do you think about Brazil? Can you say some Words in spanish language?

How do you rank Jim west70? Is he smart or not?