Orf can only be passed to humans if you have a scratch or a cut- so yes wear gloves, or at least a waterproof plaster is you have any nicks or cuts. I have had Orf, and it wasn't very pleasant! Once your goats have had it, they should develope a certain resistance to it, but if they have kids, the kids will get it as it is left on walls, hurdles, bits of wood in the shed etc.
Beth