Friction Fire
This is the most difficult way to create fire. You need wood, tinder and willpower to use this method. It takes a lot of friction to heat wood up to its ignition point. If you learn to start a fire using this method, you're one of the select few with the grit and gusto to see it through.
Pick out a piece of wood to use as your fire board and cut a v-shaped notch in the side. Carve out a small divot in the wood next to the notch. Set a piece of tinder under the notch.
Find or cut a 2-foot long branch or stick and carve the end to a dull point. You want the branch to be as straight as possible. Place the point in the divot and start spinning the stick back and forth between your palms while applying downward pressure. Keep it up until an ember forms in the divot, then tap the board so the ember falls onto your tinder.
If you have string or twine, you can make a fancier version of this called the bow drill. Tie the string to a curved stick so it looks like a bow. Wrap the string around your stick. Place the stick in the divot in your fire board and hold the stick in place with a piece of wood or a rock with a divot in it. Use the bow to spin the stick in place while applying downward pressure with your holder. This method will create an ember faster than just using your hands because you aren't going to rub your hands raw with the stick.