Trace over the Korean letters. This will give you a feel for the way that you write the letters. Practice writing them over and over.
Combine letters to form words. Once you know how to write all of the 24 letters, you can easily put them together to form words. You can practice this by keeping a daily journal in Korean.
Write words from left to right to form sentences. You can also write Korean from right to left, which was the traditional method, but modern Korean is usually left to right.
Place a space between words. This is similar to the way that you would write English, but different from Japanese and Chinese.
Learn to write hanja. Hanja are the Korean symbols that are adapted from the Chinese characters. Instead of representing a sound, each symbol represents a whole word. While you can write a Korean piece using just hangeul, using hanja is more advanced. Follow a guide to learn the stroke order.