Touch typing is all about the idea that each finger has its own area on the keyboard. Thanks to that fact you can type without looking at the keys. Practice regularly and your fingers will learn their location on the keyboard through muscle memory.
Curve your fingers a little and put them on the ASDF and JKL; keys which are located in the middle row of the letter keys. This row is called HOME ROW because you always start from these keys and always return to them.
F and J keys under your index fingers should have a raised line on them to aide in finding these keys without looking.
The color-coded keyboard under lesson input field will help you to understand which finger should press each key.
This method may seem inconvenient at first, but do not stop, eventually you’ll find out that you are typing quickly, easily and conveniently.
Don't look at the keys when you type. Just slide your fingers around until they find the home row marking.
Limit your hand and finger movement only to what is necessary to press a specific key. Keep your hands and fingers close to the base position. This improves typing speed and reduces stress on the hands.
Pay attention to ring fingers and little fingers, since they are considerably underdeveloped.
Take a break if you feel that you get distracted easily and are making a lot of mistakes. It is more productive to come back when you feel refreshed.