Be fair to your friends and call them by those names that they love most; do not use nicknames that they hate. Would you like it if others did the same to you?
Be fair to your wife. How often is it for a woman, that after an entire day of cooking, dusting, and cleaning. her husband returns home and is blind to her efforts? His indifference does more damage than any talk can do in making her feel inadequate and ignored.
So be attentive to others and thank them for any good that they do. Praise your wife's appearance if she takes time to look good for you and thank her for her daily devotion to you.