Guitar picking hand

Your picking hand should not sit on the body or stings of the guitar. Using your wrist, not your arm, strum the lowest string downward. If the string rattles too much, do not use a lot of the pick surface or strum softer. Then pick the lowest string upwards. Try this a few times. Try to lower the motion of your picking hand by doing a short pick downwards and a short pick upwards. Now repeat the process with the rest of the strings.
Remember that holding the pick will feel strange at first. You will have to concentrate on your picking hand when you begin practicing the guitar. Your downstrokes and your upstrokes
should sound the same. Also remember you will sound bad at first but this will change with practice. It takes time to become the next guitar hero!