Bonn carnival chief Christoph Arnold went with representatives of the police and the local integration commissioner Colette Manemann to a refugee centre to hand out the leaflets in person.Try it, you might like it.
In Cologne one of the points raised on the leaflet - which is printed in Arabic too - is also about alcohol, which Muslims are not supposed to consume.
It reads: 'Many in Cologne will be drinking beer or other alcoholic beverages at carnival time, but of course there is no obligation to do so.
One Syrian called Noble, 19, who has been in Germany for four months, confessed to being bemused about the celebrations, saying: 'It's something people don't do where I'm from. People drink alcohol, dress up - this is all very strange.'
THIS IS HOW ASSIMILATION BEGINS.
The festive part of Karneval is about to begin in the Rhineland, and local authorities have been explaining to the new arrivals what is and is not done.