What do I wear to a synagogue for a meeting?

I am meeting with members of a synagogue for an interview and am worried about what to wear. I am of a different religion doing a paper on religion in medicine for my university and don’t want to be disrespectful. My assumption was to wear modest clothing, longer sleeves to cover my tattoo and nothing in an inappropriate pattern or too tight fitting. But would my nostril piercing be inappropriate or should I take it out for the meeting? I am genuinely trying to approach this with kindness and sincerity so any advice on what to avoid asking is also appreciated