The best thing you can do is leave tips if you want to get the best service while in Morocco.

If you are going to stay in a hotel for a couple nights, it would not hurt to leave a one euro tip for the waiter/bellboy for each breakfast and each dinner.

In the case of the women that clean the rooms, it also wouldn´t hurt to leave them a one euro tip each night. The same applies to taxis, a one euro tip. It wouldn´t be a bad idea to get the cell phone number of the taxi driver for future services.

It is common to leave 5 dirhams per piece of luggage, per trip. So, you would leave a 5 dirham tip when they take your bags to your room and 5 more when they take your bags from your room to the vehicle which you are leaving in.