Speed typing tips.

Here
are a some basic tips, summarized from various typing tutorials and
lessons. These tips are useful for taking tests as well as everyday
keyboarding:

• Tap on each key crisply but lightly. If you use minimum force (don't bang on the keys), your fingers will move faster.
  
• Type as quickly as you are able, but don't "try" too hard or force your speed or you'll make many mistakes.
  
• Relax!
  
• Use proper posture, sit upright.
  
• 
  Keyboard/monitor positioning: your wrist, elbows and keyboard should be
  on the same horizontal plane, and at a 90 degree angle to your upper
  arms.
• The top of your screen should be near eye level.
  
• Stretch your wrists and fingers before starting a typing test (don't laugh, it does help!).

Ref: http://www.calculatorcat.com/typing_test/