How do you get head-lice?

You can get head lice in lots of ways like...when you are sleeping in someones tent it might have head lice, if your sleeping round someones house you can get head lice, when your wearing someones clothes they might have head lice in them. Now the final answer well maby 2 ways of it, you can get head lice if you don't wash your self for ages or is you don't wash your self propely. Soo there are lots of ways you can get head lice. Remember Be Carfull! :) Oh and by the way even when some one looks like a clean person well you never know they still might have head lice.