First tip was GO OUTSIDE! Unless you have studio lights and reflectors and a hair spot (I am quoting Seth H., yes, clued me into why some of the Church News mission president couple photos looked wonderful or awful).
My mother-by-marraige wants a portrait of her first born for Christmas/birthday. She still has one of him when he was 17 hung up in her house, and she wants an update. I won't count how many I have taken of him today (close to 100, seriously) and then I websurfed for some hints. Needed some help to get rid of some pesky shadows that made his hair look weird. And I love this one! His eyes sparkle, he looks like the man I married! Things I learned:
1. put digital camera on HEAD portrait icon (that's what that is?!)
2. turn on flash, so will flash every time (I had to press a button to get the lighting icon on all the time, not on A for automatically letting camera decide)
3. zoom all the way IN
4. step back enough to frame person's head/torso (don't worry about pants)
5. take lots and lots of photos!
6. the more distance between person and background, the better. You want it to fuzz out and blur background. Above settings help to do that.