Ive visited NYC many times. The subway is a magical place. Once you’re on the subway, you can do almost anything and people will leave you alone as long as you don’t bother them too much. Crying is nothing. Ive seen Zoom calls, Competitive Chess, Sex, Drugs, Rock n Roll (live instruments), Talking in tongues (or just crazy in general), a medieval knight in full armor, and probably a bunch im just not remembering at the moment.
If you start inconveniencing people though, you will hear about it very quickly.