To make the sign for holiday (or vacation), open both hands, palms facing each other, and rest them above your chest around armpit level, as if you're tucking both thumbs under the top of your overalls and just relaxing. Then move your hands forward and back, touching your imaginary trouser tops with your thumbs a few times.
Teach your baby or toddler this sign when your family is preparing for a long weekend break, a special holiday, or summer vacation.
Use the holiday (vacation) sign when you are trying to expand your baby's vocabulary. Do it contextually as your family begins to prepare for high holidays such as Christmas, Diwali, or Hanukkah.