Ah summer. Like one beautiful extended weekend you bring out a different side in all of us. And while some spend their days soaking up the sun, I find myself in a florescent-lit lecture hall, seated in a familiar (yet still extremely uncomfortable) plastic chair while people-watching a completely different crowd of students than those who typically swarm campus the other nine months of the year.

Here’s a guide to the types of students suffering through your summer course with you:

1. The Full-Time Intern

Always rolling into class in dress pants and that tired-eyed look that says, "I worked on an Excel spreadsheet all day and haven't seen the sun in weeks," probably over-caffeinated/wondering if their boss would be angry if they took the next Friday off.

2. The Overachiever

Okay, we get it, you know how to use the chain rule when taking the derivative of a square root, and even finished next unit's homework. Now please put your hand down and let the professor continue his half-hearted lecture so we can all get out of here.

3. The Serial Failer

Has a suspicious amount of background knowledge on the course--yet still seems as confused as you. Either dropped out of the class halfway through the semester, or finished but utterly failed the final. Either way, they're not happy to be back.

4. The Slacker

Their phone is constantly buzzing, and they do the absolute minimum amount of work possible. Most likely sitting in a back corner and only coming to class for the attendance grade. You just know they have plans to go to the beach after class.

5. The Visitor

Always wearing a different university's swag, and completely confused about the layout of campus. It's all too obvious: she doesn't even go here.

6. The Graduate

This class is the only thing standing between them and their degree. They've already mourned the loss of their carefree college days and are ready to move on from campus and become a (kind of) adult.

7. The Absent One

Only shows up on test days. Probably leading a double life.