愛想笑い (あいそわらい) Japanese meaning | KotomoraMeanings
1
noun, noun or participle which takes 'suru', intransitive verb
insincere smile; forced smile; polite smile
A smile put on for social purposes, often lacking genuine warmth. Can be used as a noun or with する to mean 'to give a fake/forced smile'.
笑
い
を
する
。
I give a polite smile at my boss's joke.