Guess what? This is a massively over-complicated look into guitar scales, major scales, and pentatonic scales and how to use them. Want to know some more efficient ways to go about using this stuff? Check out my article at this link:
Guitar Scale Wall Chart, The C scale is featured. That's how I began learning to improvise. Time to learn some guitar THEORY and tune up your jams! Read more about the fastest way to learn theory for guitar in the link.