Two things...

Hold yourself up in a pushup (or plank) position and lift up each hand or foot in turn. Turn over so you are facing the sky by threading one leg underneath the other and (slowly) bringing the opposite hand over the body to the ground. Don't allow the body to sag or lift in the middle too much - try to keep the back and hips in a straight line.
 

Lie down and lift the body using only two points of contact with the ground. The further apart the points of contact are, the more strength will be required (and developed). You can always cheat by putting one foot (or hand) on top of the other, or brace one arm on a leg or the other arm.



Smile...

Breathe, Move and Relax

Tim..