小さなタトゥーがありますが、入っても大丈夫ですか？ — I have a small tattoo, is it okay to enter? (Public · Bath · Onsen, Formal — to staff, JLPT N4)

Gesture & etiquette

Discreetly pointing to the tattoo (if applicable and small), or a polite bow.

Tattoos are often associated with organized crime in Japan and may be prohibited. Always ask first, or be prepared to cover them. Being discreet and polite is key.