A friend is somebody you call when you're stuck in a ditch in the middle of nowhere, they say "Be right there!" and jump in their truck and head on out for an hour drive to get you.

You don't have somebody like that in your life? You have no friends yet. Just social acquaintances.

See, in Victorian England they knew about this and had names - passing acquaintance, nodding acquaintance, speaking acquaintance. Needed an introduction to get to the speaking. They weren't friends, just somebody you had been introduced to.