I don't work and I'm currently on a gap year. But the first time I ever came out to anyone face-to-face (as opposed to chat) was in Egypt when I was studying at university . I only told 6 Iraqi friends and one Syrian Catholic friend.
Contrary to my expectations the Catholic guy was not only he very cold but also he was slightly offended that I didn't believed in God. He then started telling me that just because Islam isn't true doesn't mean Jesus isn't the son of God
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What I didn't know is that he was very religious and went to church weekly. He had to travel 50 KMs to the other end of Cairo to go to this Catholic church as most churches in Egypt are Coptic.
Of the 6 Iraqi guys I told (who were all raised Muslim), 2 were atheists, 1 was a deist, 1 was nodding and laughing without saying anything, and the other 2 Muslims were on the defense. It was an AWESOME moment. I had just anxiously admitted my atheism for the first time and within seconds 3 of my friends were making fun of Islam and bombarding the other 2 Muslims guys with anti-Islam argument. If it wasn't for this experience I probably wouldn't have had the confidence to come out to my parents.
As for my lifestyle, it didn't change enough for anybody to notice a change. I didn't get to know any Egyptians closely. My group consisted of about 15 Iraqi medical and dental students who fled Iraq in 06 and transferred to unis in Egypt. Of the 15 only 2 prayed regularly and only 4 abstained from alcohol. I've been living a secular life for quite sometime now.