Answer:
If you are unsure how to use one then just ask a flight attendant.
What has a head, a tail, is brown, and has no legs?
What is full of holes but still holds water?
Possibly the word most commonly said before taking a sip
It belongs to you, but other people use it more than you do. What is it?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?