<p>I go to a smaller public U, and professors rarely give you a hard time if you don’t come, but some make attendance worth a small portion of your grade, like 5% or 10%. And with those professors who don’t have a percentage of the grade that is attendance/participation, they often make a mental note of those who frequently miss class. It sometimes makes the difference between an 89 and 90 at the end of the semester. Go to class.</p>