At a cafe in downtown Cairo, where customers are chatting among themselves as waiters shout drink orders to the kitchen staff, a number of Al-Azhar preachers arrive decked out in their traditional attire. They talk for a while to the cafe owner, before saying "Assalamu Alaikum" — a traditional Muslim greeting meaning "Peace be upon you" — to the customers, before introducing themselves.
"We are preachers. We want to talk to you. Will you allow us?" one of them asked a surprised patron, who agreed to the request. As time passed, the customer started a conversation with the preacher.