Many shops offer Chai Kurdi (Kurdish tea) as a complimentary drink with good business from the local tea vendors in the bazaar. It is very popular prior to festivities such as Newroz (Kurdish New Year) in which business excels with larger crowds and customers.
In many shops, Chai Kurdi (Kurdish tea) is offered for free to customers, thanks to good relations with local tea sellers in the market. It's especially popular before holidays like Newroz (Kurdish New Year), when more people visit and shop.