If you are in Croatia and going to someone's house, remember that in Croatia, Rejecting a host's hospitality without Not having a sip or taste before politely turning down the host is considered rude to turn down a host's hospitality outright. So you and your new Croatian friend start talking, and religion gets brought up. Remember that in Croatia, it is considered rude to Speak in a derogatory way about God or religion since Many Croatians identify as Catholic. Blasphemy may be offensive to some Croatians; similarly, this also applies to Wearing any clothing with racist, Nazi, violent, offensive, abusive, or other inappropriate messages or signs: Wearing T-shirts and other clothing items with these messages or signs may also be considered offensive to some Croatians.
In Croatia, simultaneously Raising your thumb, index, and middle finger: This hand gesture is connected to Serbian nationalism. This is similar to bending your middle and ring fingers with the index and pinkie fingers extended, which is rude to Croatians. In Croatia, being Loud and having boorish behavior, Using the streets as toilets, Smashing bottles, and Communal late-night singing outside may also be frowned upon.