I want to try out my pump!

So I got my breast pump today and I would love to see if it works, but I'm wondering if it would be safe? Believe me, I know nipple stimulation will cause contractions, and that's not why I want to. But I don't want to make myself sore or get clogged up before hand. I think that a one time try isn't going to dry anything out either. I'm being induced in 4 days and I think it'd be embarrassing if something happened just because I tried this thing out. Any suggestions?