Incoming college freshmen, take note: University life comes with an unwritten rule book. Break any one of these regulations and your lowly freshman status will instantly be revealed. (Quick tip: Don't wear your school's lanyard around your neck. Just don't.)
Luckily for college newbies, Reddit users compiled a handy list last week of high school habits to drop before you set foot on campus. Click through the slideshow below to soak up their wisdom. Before you know it, you'll be a college pro, too.
Which freshman habits are you guilty of? If you're already in college, what's your best piece of advice for incoming freshmen? Tell us in the comments below or tweet @HuffPostTeen!