Tic Tac, Sir?

Hard candies are called "Sweeties" or "Chico" down here. Chico is a brand that does candy, and it can also refer to gum.

When people offer you a mint, beware, it's probably a Halls cough drop. People eat them like candy.

Lastly, with the money exchange at $200 GYD to $1USD, the $20 is the lowest paper bill. So when you gotta give $10 in change, it's a little silly. So shop owners will give one or two sweeties/mints/chico as change.