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

"When visiting Debrecen, it's important to respect the local customs and traditions to avoid any cultural faux pas. Firstly, Hungarians are known for their hospitality, but they also value their privacy. Therefore, avoid asking personal questions unless you know the person well. Secondly, when invited to someone's home, it's customary to bring a gift such as flowers, wine, or chocolates. However, avoid giving lilies, chrysanthemums, or red roses as they are associated with funerals. Thirdly, punctuality is highly valued in Hungary. Make sure to arrive on time for appointments or social gatherings. Fourthly, Hungarians are proud of their language and culture. Try to learn a few basic phrases in Hungarian, but avoid making negative comments about the country or its history. Fifthly, when dining, keep your hands on the table and your elbows off. It's also considered rude to leave food on your plate. Lastly, tipping is customary in Hungary. In restaurants, it's usual to leave a tip of around 10-15% of the bill. However, check if service charge is included in the bill before tipping. Remember, it's always best to observe and follow the behavior of locals when you're unsure of what to do," mentioned another expat when asked about moving to Debrecen, Hungary.