Answer:
Yes:
I snooped around his desk.
Yes and no:
Creaminess2- Contrary to the above, snoop itself is not a verb (depending on the context) but 'snooping' is a verb. Verbs are, to dumb it down a bit, doing words. 'Snooped' is past context, therefore not a verb. 'Snoop' is, more often than not, actually a noun (a noun being a persn place or thing) eg. "Get out of here you little snoop!"