YOU SAID:

When I saw your face in a crowded place and I don’t know what to do

INTO JAPANESE

混雑した場所であなたの顔を見たときに何をすべきかわからない

BACK INTO ENGLISH

I do not know what to do when I see your face in a crowded area

INTO JAPANESE

混雑した場所であなたの顔を見たときの対処法がわかりません

BACK INTO ENGLISH

I do not know what to do when I see your face in a crowded area