Well the actual first thing he should do is study about magick and it's true meaning. He should also study, Meditation, Energy and how to use it, Grounding energy, Moon Phases and how they affect a spell , Spell casting (Which is something you will have to learn slowly), and Candles and the color meanings.
All those will help you on your way. When you get to spell casting remember spells are not like in the movies, they will not just happen, they will take as long as they need to work. So don't be urked when a spell doesn't work right off the bat. You will know if it does or doesn't, the one thing I don't advize is casting the spell more then once.
As for meditation, meditation will help you find your center, it's also a great thing before spell casting, it helps concentrate.
Also when casting a spell I'd suggest start with candle magick. Those are most referred to people who just started casting spells. Remember if you don't have faith in your spell then it will not work.