How to express "yes" casually in Japanese Many textbooks list "" as the casual form of "yes" or "", but I only seldom hear this expression. Is "" really all that common, and if not, how do people typically give affirmative responses to questions in casual situations? For example, how would you casually affirm the following: Case 1: > 1. **** > > > You don't have club activities today? > > 2. ** ** > > > **No.** The tennis court is still wet from the rain so we can't practice. Case 2: > 1. **** > > > Are you in any clubs? > > 2. ** ** > > > **Yup.** I'm on the tennis team.

If you are asked by your familiar people(ex.friends/families), use in both cases.

If you are asked by senior people, elder people and acquaintance(not very close friends?), use in both cases.

I think both cases are asked by friends, so using is good.

I've never seen people use in ordinary conversation.

but I've seen it in Anime.