noun, noun or participle which takes 'suru', intransitive verb
licking one's lips (at food)
Literal or figurative licking of the lips when seeing or thinking about delicious food.
焼き肉のいい匂いに、思わず舌なめずりをした。
At the delicious smell of grilled meat, I unconsciously licked my lips.
noun, noun or participle which takes 'suru', intransitive verb
licking one's lips (in anticipation); eagerly waiting
Figurative use expressing eager anticipation for something desirable, not necessarily food.
新作ゲームの発売を舌なめずりして待っている。
I'm licking my lips in anticipation of the new game's release.