Try taking a picture of yourself with out your face in it. This can be an effective way to ease yourself into the self portrait process if you are like most other people and are overly critical of pitures of yourself.
If you're stuck for ideas, try one of the following ideas:
1. Your favorite body part.
2. Something easy to photograph, like your toes or hands.
3. Accentuate something you wear all the time, like a ring, or something permentant on your body like a freckle or tattoo.