YOU SAID:

laughing about how small it looks on you

INTO JAPANESE

あなたにとってどれだけ小さく見えるかを笑っている

BACK INTO ENGLISH

You're laughing at how small it looks to you.

INTO JAPANESE

あなたはそれがあなたにとってどれほど小さく見えるかを笑っています。

BACK INTO ENGLISH

You're laughing at how small it looks to you.