Another way to increase your curiosity is to indulge it, by investigating things you're interested in. Curiosity is unlike most other appetites in this respect: indulging it tends to increase rather than to sate it. Questions lead to more questions.
"A well-fed man keeps and calmly gives forth his infinitesimal portion of eternity. It sounds big in the summer night. And it is, as it always was down the ages, when there was a man with something to tell, and ones, quiet and wise, to listen." - Ray Bradbury