You treat a pipe like a cigar and inhaling is discouraged. I certainly wouldn't, but it's your choice. There's various ways to approach things, but you get a more varied smoke depending on how you smoke it, how you pack it, and especially on the tobacco you use. I would not recommend inhaling pipe tobacco, you get enough of a buzz just through the mouth anyway.
If you're starting off, best to go with a medium English blend like Dunhill Standard or Squadron Leader.