In college, you'll encounter a million different types of people from all walks of life. You'll encounter them all many times. Don't be "that" person.
1. The perpetual question asker
"Do we have homework?" "Do you have the homework?" "Can I see it?" "What did she say?" Yes, this student comes to class ... but that's about it. You wonder to yourself, "How do you even get by, much less get accepted to college?" They make you ask questions about life that you didn't even think about before because you were, well, too busy being responsible, and using your listening skills.
2. The overly-attached-to-the-professor Student
Usually with a rolling backpack in tote. There is a difference between being interested in a class and stalking the life out of your professor. These students are the ones who don't just ask a quick question after class. They escort the professor to their car while raining compliments down upon them. Yes, I've seen it happen, and yes, it scared my professor senseless/annoyed him to the point of no return. Don't be this person. They'll more than likely dislike you, and so will your classmates.
3. The smarter-than-the-professor student
"Great point, Dr. _____, but ..." Almost as bad as the overly attached student, the smarter-than-the-professor student is one of the worst. Their snarky questions and obvious quotes from the textbook make you want to put your head in the nearest door and slam it. They are most often found in general education courses, but if you're lucky enough, they'll continue on into your major classes. By then, they've figured out that most professors don't take kindly to having their intellect challenged, and finally decide to pump the brakes on all those unnecessary questions.
4. The midterm and finals student
All of a sudden, there are 45 new people in your class around a week before midterms and a week before finals, getting their study guide, and sneaking out the door an hour before class ends. These people are the epitome of lazy, and half the time, when they show up for the test, they bring the wrong size Scantron, and ask for one of yours. Find a seat, bud, and not the one that the regulars sit in. There are still assigned seats in college. It's an unspoken rule. You should've been here to claim one.
5. The average student
Ah, yes, the average student: The one who comes to class, but might miss one or two. Keeps up with every homework assignment, and turns it in on time. May ask a total of three questions after class the entire semester. Doesn't drive the professor up the wall. Makes an "A" or a "B" in the class. This is the majority of college students, and I'm quite all right with that. Are you?