When you are forced to go outside. 

Waking up after a night out without a hangover. 

Icebreakers on the first day of class.

When you don't get your morning cup of coffee and someone asks you to do something for them. 

Checking your Econ exam score. 

Finding out your professor cancelled class. 

When your friend tries to drunk dial her ex.

Turning in your final exam.

Walking into the basement of a frat.

 When your roommate gets a boyfriend. 

Trying to sleep anywhere but in your own bed. 

Your response to being called on in Spanish class.

Getting hit on at the bar. 

Telling your friends about the hot guy in your class.

PDA. Anywhere. At any time. 

When someone brings up graduation and the future.