When someone ask you to smile to take a picture.
When you remember that you need to study for a test.
When you see someone that you don’t like in the street.
When someone says you’re wrong, when you’re cleary right.
When you try to look sexy.
When a cute guy/girl looks at you.
When you say that you can’t go because you have a party.
When you want to laugh, but you can’t.
When someone sit in your place.
When you’re looking through your yearbook.