I know

Customer: I want four of the blue crabs. (Pointing)

I want this one….

Me: I can’t see through the case to wear you’re pointing.

Customer: I know. (Pointing) This one.

Me: This one?

Customer: No. Come forward.

(I grab the one she wants)

Customer: (pointing)I want this one.

Me: I can’t see where you’re pointing.

Customer: I know. (Points) This one. Third from the front.

Me: Okay.

Customer: (pointing) This one.

Me: I can’t tell which one you’re pointing at.

Customer: (pointing) I know.