posing myself

I tried taking photographs of myself today (since I got a haircut)
I wanted to open the aperture to make it shallower depth of field, but the main problem is with focussing - what's the best way to focus on myself when I'm running backwards and forwards to press the shutter button then running back to pose.
I tried a number of different "poses", what are the techniques/tips of posing?
My friend said that I should be more natural.

I wanted to open the aperture to make it shallower depth of field, but the main problem is with focussing - what's the best way to focus on myself when I'm running backwards and forwards to press the shutter button then running back to pose.
I tried a number of different "poses", what are the techniques/tips of posing?
My friend said that I should be more natural.