Well you're not going to get warm doing nothing, how about we make a fire with friction!
sticks Well what is Friction first off. Friction is the resistance that an object encounters when moving over a surface or other object. There are different frictions in Physics but let's just stick to making a fire.

You won't get your fire by just rubbing sticks together. The method here is called the Bow Drill method. This method causes a lot of friction which in return creates heat. The heat causes embers to occur which light the debris and begins the fire.

(Click image to enlarge)

Bow Drill
\Need a light Or you could always find a can of aerosol and a lighter laying around for a quick light.

Don't understand the Method above?

Click HERE to see Bear Grylls making a fire