You want to learn, you want to listen to your teacher, and you want to absorb all of that information in class; but it's just so....boring! It's hard to focus on what Avogadro's Number is when you'd much rather think about seeing Sara later, but with a few mental and physical tricks, you can pay attention in class. Like with most things in school, it takes work and determination, but once you build the skill you'll be happy that you put in the effort.