Ok, it’s doesn’t just happen. Couples have to work at it to be happy. So experts have weighed in on shared traits of happy couples:

They laugh together. Laughter helps secrete endorphins, and endorphins make us happy. Also couples who laugh together have a shared sense of humor and can roll with the punches together.

They use pet names. It gives a sense of intimacy and bonding. And the more nicknames the better.

They are aware of and appreciate every day kindnesses. Little things that show our appreciation, or show us we’re appreciated, go a long way. It takes on a ripple effect which perpetuates the show and be shown affection we crave.

Take a look at other secrets here.