I was down in Dundee at the weekend visiting a friend and knowing my interest in Linux she asked me about it, her first question being "How much does it cost". When I told her it was free she was very impressed and asked if I could install it on her computer. She had a very dated looking Windows XP set-up (I'm not sure it even had SP2 installed) and her major gripe was the fact that she couldn't install the new live messenger and being stuck with an old MSN Messenger app.
Ever keen to get new people to try Linux I asked her if she was ok with me installing an OS and completely getting rid of windows. She never really plays games with it other than solitaire and mainly just uses it for the Internet "The perfect candidate for Linux" I thought to myself. With complete trust in me she agreed and when I asked if she was sure at getting rid of windows before I hit the return key she said "yep Kill it!" and with that the hard drive was formatted to ext4 and XP annihilated.
I had a bit of trouble at first as I didn't have an Ubuntu install disk on me (I chose Ubuntu over any other distro as I figured it'd be best for a new convert). So I used her Windows to download the ISO only to find out that I couldn't get any app in the OS to burn the image to disk. I managed to overcome this, luckily I had a copy of pupy 4.0 live cd. There was only one optical drive so I had to run puppy from ram, once booted I mounted the windows Drive and was able to burn the Ubuntu image to CD.
Once it was all installed and I set it up for her (installed restricted extras, libdvdcss, aMSN, compiz, VLC etc.) I showed her a few things to get going and let her play about with it. The overall result was good, She was impressed with it saying "It's like I've got a new computer". The one thing she spent the most time on was aMSN (I told her about empathy but didn't seem interested) I noticed in one of her IM's her saying "I've got the new MSN messenger now". I didn't bother trying to explain the difference but it goes to show that from an end user's point of view Windows / Apple / Linux / BSD it's all the same and the underlying technology doesn't matter as long as it does what they expect it to do.