Why go
This background is most useful at active mosques, bazaars and neighborhood cafés, where visitor behavior shares space with worship and everyday routines. It helps you distinguish necessary respect from outdated stereotypes and approach invitations or bargaining with calm, direct communication.
The full story
Istanbul is accustomed to visitors, yet many major monuments remain active religious or civic spaces. At a mosque, dress modestly, remove shoes where directed and follow staff instructions; tourist access can pause around worship. Photography deserves the same judgment used in any living community, especially when people are praying. Tea is a common gesture of hospitality and conversation, but accepting a glass does not create an obligation to buy. In bazaars, a polite refusal is enough when you do not want to continue a sales conversation. Bargaining may be expected for some goods, but not every marked price is an opening offer. Public life ranges from conservative to highly cosmopolitan across districts, so rigid claims about what “locals” do are rarely useful. Learn a few Turkish courtesies, keep voices measured in sacred spaces and ask before photographing people. The most reliable rule is situational: identify the setting as a museum, an active place of worship, a market or a neighborhood street, then follow the cues of that space.