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

"In Stykkisholmur, it's important to respect the local customs and traditions. Avoid making loud or disruptive noises, especially in public places, as Icelanders value peace and quiet. It's also considered rude to litter or damage the natural environment in any way, as Icelanders take great pride in their country's natural beauty. When interacting with locals, avoid discussing sensitive topics such as whaling and fishing practices, as these are controversial issues in Iceland. Also, refrain from comparing Iceland to other Scandinavian countries, as Icelanders are proud of their unique culture and heritage. In terms of dining etiquette, it's considered impolite to start eating before everyone else at the table has been served. Also, tipping is not customary in Iceland, so don't feel obligated to leave a tip at restaurants or bars. Lastly, while Icelanders are generally fluent in English, making an effort to learn a few basic phrases in Icelandic will be greatly appreciated. However, avoid mocking or making fun of the Icelandic language, as this is considered disrespectful," mentioned another expat when asked about moving to Stykkisholmur, Iceland.