How do you know if you're good friends?

Here is how. How do you get in to your friend's house?

Level 1: The knock and wait. You aren't comfortable just going in.

Level 2: The knock, wait, and open the door, with a "hello?" as you tiptoe in.

Level 3: The knock and barge with a loud "HELLO!"

Level 4: The barge, no knock.

Level 5: The "I have a key/know the alarm code so it doesn't matter; I'm getting in somehow."

Exceptions: You already know the door will be locked, which is the only reason you knock. That would be a level 4.5. Or you don't barge because there is a dog.

Another way of rating would be if you're thirsty. Do you wait to be asked for a drink? Do you ask the person if it would be ok to get a drink? Or do you know where everything is so you just do it yourself?

I bet you can name people for every category if you really think about it.