This should be interesting!
1. Unwrap and eat a candy cane. The peppermint soothes your stomach, and as simple as it sounds, opening and eating a candy cane requires a small amount of concentration, breaking the attention on the hiccups.
2. Drink water from the opposite side of a glass or cup, in other words, the side away from you. You'll be distracting your mind away from the hiccups by doing something foreign to you and having to pay attention to it.
What do you do when you have the hiccups?