People feel happier when they feel like they're progressing. When they feel like something in their life is growing or getting better.

Laughter is more than just a pleasurable activity...When people laugh together, they tend to talk and touch more and to make eye contact more frequently.

Happiness comes not from having more, not from having less, but from wanting what you have.

Nature is impersonal, awe-inspiring, elegant, eternal. It's geometrically perfect. It's tiny and gigantic. You can travel far to be in a beautiful natural setting, or you can observe it in your backyard - or, in my case, in the trees lining New York City sidewalks, or in the clouds above skyscrapers.

Happiness is hard because it's very subjective. I know the people that seem happiest to me, but whether they are actually - what they're really like inside is really hard to say.

Relationships make me happy.

I've found that I snack less and concentrate better when I chew on a plastic stirrer - the kind that you get to stir your to-go coffee. I picked up this habit from my husband, who loves to chew on things. His favorite chew-toy is a plastic pen top, and gnawed pen tops and little bits of plastic litter our apartment.