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

"It is important to be mindful of local customs and traditions when visiting Galway. It is considered rude to talk loudly in public places, so it is best to keep your voice at a reasonable volume. Additionally, it is important to be respectful of religious sites and to dress appropriately when visiting them. It is also important to be aware of local laws and regulations, such as the smoking ban in public places. Finally, it is important to be respectful of the Irish language and to avoid using offensive language," remarked another expat in Galway, Ireland.