"Please teach me how to surf."

Translation: 저 서핑 가르쳐 주세요.

[Komerinam]

What? 서핑 가르쳐 주세요? It's not a ve.ry good traslation

[wintertriangles]

They dropped the object particle. 서핑을 가르쳐주세요.

Technically they also made the sentence less complicated, since "how to" is not translated. However, it isn't required. 서핑하는 방법을 가르쳐주세요. = Teach me the method of surfing.

[mcriss8]

It does make sense. Koreans like to make their sentences as short as possible. You don't have to say "how to" because it's assumed in the context.

[ApLz6]

I'm Korean. 어떻게 서핑하는지 가르쳐주세요. or 어떻게 서핑하는지 알려주세요 Choose one.