put on a clean ironed shirt, clean jeans and boots...note pad and pen, and knock on doors, easiest, fastest and cheapest way to build a round. get free business cards from vistaprint. away you go.
dont undercut and be polite the worst you will get is... NO THANKS.
this way you will learn how to price a house because you will know when you have messed up when you are cleaning, you are going to have to face your customers eventually so why not do it yourself.