I dropped off some suits at a new dry-cleaners. The Asian proprietor (it's germane) seemed happy to see a new customer, and tried to shake my hand. He had the sniffles so I tried to fist bump instead, then he grasped my fists instead, and it all became quite awkward -- so awkward that he finished it all off by pressing his fingertips together and bowing.
I tried to make up for it when I picked up the suits by shaking his hand. He immediately sneezed.