Honesty is king (and queen). Always take into consideration the opinions and feelings of the other one. Never laugh or ridicule what your partner is saying or feeling. Listening is a good way to start.
yes! speaking with the truth, sharing what you like and what you dont.. and understand or at least trying to understand their feelings and what bothers them
I totally agree with Karla and Sofia, honesty is the best way to have good communication. From my own experience, always tell the other person whenever he does something wrong, so he can do the same. And always have enough trust to speak things, whenever you’re not comfortable with something, or don’t like something, and listen whenever he does it.