While an Assistant Professor at the US Air Force Academy in Colorado Springs, CO, I noticed that even the smart college students at USAFA would occasionally make these major mistakes.

When I wrote my first book to guide college students through the experience from orientation to graduation, "College Success Your Way: What Your Professors Won't Tell You and Your Friends Don't Know," I knew the only way well-meaning students would know the inside scoop on what was really expected, was if an insider like me, a former college instructor and academic advisor, told them.

So here you are, eight of the biggest mistakes even smart and well-meaning students can make.

Asking the "forbidden questions" Such as When is it due? Is this testable? Did I miss anything important when I skipped class? They make you look life a beginner, or someone who should know better but doesn't.

Not reading the syllabus Teachers put a lot of time and thought in to these, you can at least read them and know what's expected of you.

Making excuses instead of taking responsibility Very high school, and you left that behind long ago.

Trying to get by on charm instead of merit Don't try to be the teacher's pet. Not only does it annoy teachers, it annoys your fellow classmates, too.

Turning assignments in late Sends all the wrong messages. You have as much time as anyone else. Get it done and hand it in on time. No excuses.

Asking to make up a test Think about this one, the teacher has to make a whole new test in this case. Not at all a fun thing to do. And how happy do you think she's going to be when she writes and grades it. Not a pretty sight. Make it to the regularly scheduled test time whatever the cost.

Asking for help when it's far too late Make an appointment at your first clue that you may need some extra guidance.

Popping in for office hours without an appointment Many profs prefer to schedule people so they know what to expect and can plan their time better. No surprises. Getting on their calendar, and being on time shows that you're serious about doing well, and it shows respect for their time.