There are two types of snipe hunting. One is the fictional type where you do what SkyInTheWoods said.

The other actually involves hunting a snipe.

Not sure which one your buddy wants to take you on but the snipe is a small marsh land bird and is very similar to the wood cock. I have never hunted them but from what I understand they are a very dificult bird to get close to and are extremely quick flyers.

Read this if you are actually considering hunting snipe.
http://espn.go.com/outdoors/general/columns/swan_james/1306674.html

Here is a pic of a snipe.