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

"In Delft, it's important to avoid being late for appointments or meetings, as punctuality is highly valued in Dutch culture. It's also considered rude to interrupt someone while they're speaking, so try to wait your turn in conversations. Avoid discussing personal wealth or income, as the Dutch tend to be private about their finances. Similarly, don't ask personal questions unless you know someone well, as this can be seen as intrusive. When dining, keep in mind that the Dutch typically do not begin eating until everyone has been served. It's also customary to keep your hands on the table (but not your elbows) during the meal. In terms of tipping, service charge is usually included in the bill in the Netherlands, so tipping is not obligatory. However, it's common to leave small change or round up the bill if you're satisfied with the service. Lastly, while the Dutch are known for their directness, it's important to avoid being overly blunt or confrontational. Try to express your opinions in a respectful and considerate manner," mentioned another expat when asked about moving to Delft, The Netherlands.