Casual Friends: Say “I love you” in a jokey way.
Real Friends: Say “I love you”, and mean it.

Casual Friends: Are around for a while.
Real Friends:: Are for life.

Casual Friends: Save the last slice of cake for you.
Real Friends: Eat the last slice of cake and laugh in your face.

Casual Friends: Would bail you out of jail.
Real Friends: Would be sitting next to you saying, “That was awesome!”

Casual Friends: Will read these.
Real Friends: Will nick them.