What cultural faux pas should I try to avoid making in Howth?

"In Howth, it's important to avoid making jokes or derogatory comments about the Irish language, history, or culture, as this can be seen as disrespectful. It's also considered rude to refuse an offer of food or drink, as hospitality is a big part of Irish culture. Don't bring up sensitive topics like religion or politics unless you're well-informed and can discuss them respectfully. Avoid comparing Ireland to the UK, as this can be a sensitive topic due to the countries' complex history. Lastly, don't assume that everyone in Howth or Ireland in general knows each other or is related, as this can come off as stereotyping," remarked another expat in Howth, Ireland.