すみません、麺をバリかたでお願いします。 — Excuse me, I'd like the noodles extra firm, please. (Ramen · Shop, Formal — to staff, JLPT N3)

Gesture & etiquette

None specific, possibly a polite nod.

Some smaller shops might not offer this customization, or might only offer it for specific ramen styles (e.g., Hakata-style tonkotsu ramen). Be prepared for them to say no.