Just make sure you (or exposed metal) don't connect the two poles together. Even if you do, it's not lethal, just painful.
Discussion
Glad I googled all this stuff. I was watching how-to videos and was like, wtf, these dudes are just touching the poles w/bare hands.
My CS degree didn't require any EE classes so, yeah, got one semester of E&M in AP Physics and nothing since. Not kidding when I said I don't understand electricity!