During a run of gigs thru december, Marc and I got quite a good relationship going with the bouncers at the venue.
There was one guy who wasn't so interested in the magic at all, he'd be patient and understand that everyone else enjoyed it, but wasn't into it himself.
One evening he took me to one side and asked if I could teach him something to show his kids, we showed him a very basic false transfer to vanish a coin for them. It was at that point that I caught that twinkle in his eye, like he was a kid again playing with this simple of simple magic trick.
From that point on, he was really receptive to the stuff we performed, I imagine i was thru creating that relationship and making him feel special. Now, I don't suggest going and teaching everyone coin vanishes, but in this instance it was a nice friendly thing to do and strengthened the relationship.
I'd take this kinda thing on an individual basis, assuming you know the person, it should be easy to guess what they want out of learning a magic trick, if not, just ask.
People have got to get started in magic one way or another, it could be that your friend is genuinely interested..I don't know, I'd just follow your instincts.
D.