He better watch sports matches first. That will be a gambler's introduction to the game. Next, he should not be betting high stakes just yet. Test the waters. There's so many games to bet for and it doesn't need to be rushed. Just play some minimum amount and check if you are doing it right.
A gambler should not gamble first without even knowing what he is getting into. Watch the sports, learn it, and then maybe a gambler has the talent to predict the right choice.
I'm not sure if watching the sports match will be the best idea to understand sports betting. IMO, he must learn the sports field and the way of sports betting firstly. One he quite understands these, he can start to watch the sports matches. So, it can be easier to understand the match and how bettors usually place the bets there.
By the way, I don't understand why someone needs to try sports betting if he isn't familiar with sports matches. There are too many betting fields, it will be much better to choose the bets in something that he is quite familiar.
