While a city like Istanbul feels notably westernized, Turkey is still a Muslim country and in the less touristy areas, people are still rather conservative. Thus, it’s important to be respectful of etiquette. If you’re only travelling to major tourist centres such as Istanbul, many of these rules might seem exaggerated to you, but it is always wiser to show more respect for customs than too little. Most Turkish people will very much appreciate your effort and polite manners, so don’t worry if you still feel like you’ve behaved inadequately. Turkish people are very generous and their hospitality and kindness will impress you.