How to bind off with DPN's?

I am knitting a dog sweater on dpns. (I am using 3 needles and knitting with the fourth) But my problem is that I don’t know how to bind off. Could someone help me? Thanks!

Here are some videos to help you with the binding off. It is just like any two needle project in that you will bind off one stitch at a time, I imagine.

http://www.knittinghelp.com/videos/casting-off

It’s just like binding off on regular needles, except when you get to the point where there is one stitch left on the right-hand needle, you slip it to the left and continue.