4. Know when to keep your mouth shut
Tactfulness is the key to a successful relationship. It is important to know when to speak up and when to remain quiet. Also, you should learn how to say the right thing. The smallest argument can blow out of proportion and be the beginning of the end. Find a way to respond in a way that will diffuse the situation. The point is… communicate well. And whatever you do, don’t ever call your partner ‘stupid’. It never ends well. Ever.