You could also sign up for a class in basic bike mechanics, often held at bike shops or places like REI. Or just walk into your LBS someday when they aren't busy and ask them to show you. Be sure to practice at home a few times. And when you inflate the tire, always stop at about 25 lbs pressure and check that the tire is seated properly (ie. the bead is even all the way around on both sides) before inflating to full pressure. Blowouts are best avoid by using care when inflating.