hold a guitar / right hand position

To hold a guitar

There are several ways to hold

Depends on what kind of guitar and what style you are playing

Here is classical style

Source:http://www.learnclassicalguitar.com/how-to-hold-a-guitar.html

Below is another way to sit and hold a guitar

http://yourbeginnerguitarlessons.net/classical-guitar-lessons-beginners-proper-sitting-position-simple-pieces-play/

Or this way if you d like

Lovely...isn't she?

Source:fretjam.com

These pictures shoes how the right hand should be. 

Or if you use a pick

Your right hand will be like this

Source:guitarnick.com

Ok try to stroke down 

Just try to move pick over the string

The tip of pick passes string smoothly