What are some good topics to talk about with my girlfriend?
Just let her talk and act interested.
Sports, food, your relationship, fun things to do. Ask her questions and then you'll start a conversation.
Your life and how much you love her but not for to long and ask if she likes to snowbord or ski if you have it arawnd you
Try to find common interests, movies, music, sports or outdoor activities like hiking or camping. Once you know what your common interests are then conversation is easy.
Let her start the conversation and follow. May be the best u can do.
Common interests, the news, sports.... School.
Her, talk about her, then let her talk about herself. Seriously.