I've mongered in Marrakech and had some amazing times. Pro tip, only action I saw was at hotel rooftop bars. And it's not like Sosua, as in its better to let them make the first move. Chances are if she's alone or just with other girls at the bar, is wearing the appropriate attire, and drinking, she MIGHT be in the business. Don't walk in assuming that though. And just like Sosua, chica proof that room. And be wary of going out by yourself in shadows parts of town unless you speak Darija or one of the prominent Berber dialects.