If you are obviously lost in the Medina, then it is common for people to offer to help with directions or even lead you to what you are looking for. Although not apparent at first, these people expect to be paid and will often lead you round in circles to increase the amount. Also, people may say that the place you are looking for is closed, but they will take you somewhere else that's better. This is almost always a lie. The best people to ask for directions are people behind a counter, as they cannot lead you because they don't want to leave their stall. If you are seriously lost, getting someone to lead you back is an option, but you should not give them more than DH 10-20, no matter how much they complain.
There are often people in Djemaa El Fna offering henna tattoos, which are popular with locals and tourists alike. But among the many genuine traders are one or two scam artists. They appear very charming and trustworthy while you choose a design, but will then cleverly divert your attention. Before you know it, you have the beginnings of a rather poor henna tattoo. Even if you do not want a design, be sure to keep your hands away from them as they will grab your hand and begin a design anyway. The scam artist later demands massive payments, in whatever currency you have (Dirhams or not). After emptying your pockets, if they consider you can afford more, they will demand that you visit a nearby ATM. Always agree on a firm price before work starts. If you can't do this, insist that the operator stops immediately - then go to another (hopefully more reliable) operator to get your design completed. If they say it is free before they start or while they are doing it, they will always ask for a price later on. If this happens to you, you can walk away without paying; however, they will harass you for a little before giving up and moving on to another tourist.
Most Moroccans are tourist-friendly and are not aggressive, so sometimes making a fuss in public can generate unwanted attention for a scam artist and shame them into backing off.
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