TODAY’S PHRASE: 'licking their lips'
We say people are 'licking their lips' when they are about to eat something tasty. The phrase can also be used to describe a person's eagerness about an event in the future.
Examples:My children were licking their lips when they entered the sweet shop.
You'll be licking your lips when you see the roast dinner I've made!
Dave was licking his lips ahead of the crucial football game.