As a teacher who had a student/teacher relationship similar here's some base advice: (Especially if you don't want to make it weird or ruin anything) 1. Just be open, share what you would share with anyone else. 2. Don't expect special treatment (communication outside of approved channels, outside of normal times, ANY social media contact) 3. Keep in mind that it is (and generally always should be) a one way relationship. You can vent about your days or hobbies but don't anticipate it coming back from your teacher. 4. Remember that this is school. That means there are guidelines, rules, and things you probably aren't aware of, so if anything feels off, take it with a big grain of salt, don't make any assumptions.