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

"When visiting Guimaraes, avoid speaking Spanish or assuming that locals understand it, as this can be seen as disrespectful. Instead, try to learn a few basic phrases in Portuguese. Be mindful of the local customs and traditions, such as dressing modestly when visiting religious sites and respecting the local's privacy by not taking photos of them without permission. Avoid being loud or boisterous in public spaces, as this can be seen as rude. When dining out, do not ask for substitutions or alterations to the menu, as this can be seen as an insult to the chef. It is also important to be punctual for appointments and social engagements, as being late can be seen as disrespectful. Finally, be aware that personal space is valued in Portugal, so avoid standing too close to someone during a conversation," mentioned another expat when asked about moving to Guimaraes, Portugal.