Self-Disclosure: Tell your partner about yourself. Tell them your thoughts and feelings and the events that are occurring in your relationship. Without full self-disclosure, you are making yourself hard to understand to your partner, which can create conflict (Scott & Schwartz, 2012).
See situations from your partner's POV, as well as your own: This allows possible conflict to be resolved in a quicker manner, rather than creating new conflicts from arguing after the original conflict was brought up (Scott & Schwartz, 2012).
When communicating, avoid direct criticism: "Criticism involves attacking one's partner's personality or character, rather than complaining about a specific behavior" (Schwartz & Scott, 2012).
Accept responsibility when you're wrong: Don't put the blame on your partner. Try not to counteract what your partner is saying to you and make sure you take ownership of what you may or may not have done.
Avoid stone-walling at all costs: Make sure you don't refuse to speak to your partner even if it's a self-defense mechanism. Try and communicate however you can with your partner to create a resolution.
"It's not what you say, it's how you say it": Although cliché, it's true that what you say can have an entirely different meaning after you've said it a certain way. The actual way you work through a problem with your partner and address a conflict is more important than what you're saying.