How to learn to program?

How did you learn?  I'm not asking how you learned a particular language, but how you learned how to program in general.

First i spent years of my childhood typing in BASIC programs from magazines, then modifying them, then finally writing my own games.

Later I attended university, and during my 5 years of Computer Science education I learnt Java, C, SQL, and constructed several large and complicated systems.

Then i read SICP and learned how to program.