The real problem, of course, is external. I'm sitting in my booth opposite my oldest friend (She's only 22 years old. Obviously I have friends older than that. I just mean that she's been my friend longer than anyone else. And even that isn't actually true, but just in case she reads this when it's posted I want her to know that I like her and I am having fun not studying with her). She's a terribly distracting person to sit across a table from, because she is interesting. A word of advice: if you are the kind of person who likes getting work done, only make friends with boring people. Interesting people will distract you for hours simply by sitting across from you and being interesting, and reminding you that you like to listen to interesting people more than you like accomplishing tasks.
The unmotivated man has any number of tools at his disposal for wasting time, many of which are as simple as a piece of paper. Today, hidden behind my upright laptop screen, I've constructed my personal favorite: the paper airplane. She's over there reading--she'll have no idea what's coming until it beans her right on the top of her studious little head.
For something made of so standard a material as a piece of notebook paper, the paper airplane takes a great variety of forms--there's the long and skinny, the pointy, the wide and stubby, the glider, the trick plane, and the obviously-doomed-to-fail. And really, there's very little in the world as pleasing as a functional paper airplane. Look at what we have created, we think. Out of nothing, SOMETHING! And something that flies, no less.