...who maybe is going to get you a gift.
So many buddies are going to show up in your GI tract.
11 apps to build your real-world social network.
Are you working out today because your friend went jogging yesterday?
Another good reason to get out more
The social network that has grown to 1.6 billion users launches 'Friends Day'
You’ve got a friend in me (and three other people)
Friends really are the family you choose
Like science, tech, and DIY projects?
Sign up to receive Popular Science's emails and get the highlights.