Usually scammers like this will do a demonstration or create something without asking for payment, and then after it is done and demonstrated or given to you, t

Usually scammers like this will do a demonstration or create something without asking for payment, and then after it is done and demonstrated or given to you, they ask for payment. Tourists will give them money because they assume it is some local custom, or they otherwise just don't want to be involved in a dangerous situation. When you are a tourist and a stranger does absolutely anything for you - even something simple like holding a door or giving directions - assume they will ask for payment. Get in the practice of saying "no" frequently.