I agree with LET HIM SHOOT. As a woman, I know that too much advice too soon is not much fun. Sometimes we all need, "A little less talk, and a lot more action."
However, I too am a right handed, left eye dominant shooter. Here are some tricks that have helped me on my journey.
1. Scotch tape on the shooting glasses to the right eye
2. Isosceles shooting stance. For me this means feet shoulder width apart and my left foot back about 4 inches.
3. Find your natural point of aim.
When I changed my feet (left foot back a little) I found my natural point of aim. There is no sweeter feeling than to bring your gun up from a draw and be right on target
If your friend really wants to know more...let me be the first to say....buy him Brian's book.