Anti-hassle advice:

Moroccans can be lovely, hospitable people if you get the chance to know them. However... most offers of hospitality such as 'come in for a cup of tea!' - in regular travel destinations will result in a sales campaign. So don't accept any. Don't trust what young men on the street tell you and don't tell them where you're staying. Be very clear and firm about your needs; indecision and vagueness could lead to unwanted pressure. All sorts of tricks are used to develop a relationship that will lead to sales, from the simple 'where are you from' to 'could you tell me what this says'. Best to reply distantly to greetings and nothing more... Sad, isn't it? But Morocco really is worth the hassle and non-sales people are relaxed, friendly and generous!

Women travelers:

The hassle-factor for lone females or even pairs can be tough. Do wear very conservative clothing - certainly not tank tops or short skirts and preferably long everything, plus a headscarf. Stay with crowds and away from solitary low-light areas. Essaouira beach has a problem with large groups of rampant teenage boys.