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

"It is important to be aware of the various cultural norms when visiting a new place. In Strasbourg, it is important to dress modestly, use appropriate language, and respect customs like greeting with a kiss on the cheek. It is also important to avoid making negative remarks about the French culture or language, or France and its history. Additionally, it is wise to be conscious of meal times and respect the way food is handled, as well as customs that are related to the consumption of alcohol. Lastly, it is important to be mindful when discussing topics like religion and politics in order to avoid any misunderstandings," said another expat in Strasbourg, France, France.