Here are some of the things I do so far in my new part-time job.
1. Explain how to housebreak a puppy.
2. Give free, amateur medical advice. ("Yeah, that looks bad, you should see a vet.")
3. Give directions to the public rest room.
4. Explain that this is a pet store, and we don't sell needles/keyrings/office supplies etc.
5. Convince people that those really ARE dog cookies.