Step 1, know what exactly is forex. The information can be found......
I had done searches via the internet, and I came upon this website which provides tutorials and knowledge regarding forex, BabyPips School. It is referred by many other websites and forums, and I personally find the tutorials extremely helpful in understanding forex trading.
You may locate BabyPips School link in the sidebar, for tutorials and guide. (scroll the pages if you don't see it)
Almost everything covered in BabyPips is important for one's knowledge before starting trading in forex. Therefore be sure to complete the tutorials when you have the time.
Here are highlights which I find them most crucial to a beginner in forex trading:
1) Learn to read the Quotes, understand Long and Short,
2) How to choose your Forex Broker,
3) Know how to read Candlestick charts, identify Candlesticks Patterns, and Chart Patterns,
4) Understand Support & Resistance, and Elliott Wave Theory,
5) Keep in mind of Market Trading Hours and Money Management,
6) Difference of Fundamental and Technical Trading.
Once again, I would like to point out that these are just highlights I had suggested, it is important to go through every tutorial found on BabyPips.