Buy a kit containing Braille-specific computer keyboard overlay stickers. As of 2010, self-installed sticker kits can generally be purchased for below $20.
Moisten a sponge or cloth with rubbing alcohol and thoroughly clean the computer keyboard keys. Allow the keys to dry completely. Adhere the Braille textured alphabet stickers to the computer keyboard. Place the Braille sticker labeled "A" directly onto the keyboard key labeled "A". Press and hold the sticker on the key for 10 seconds. Continue in this way, adhering each Braille alphabet sticker to the corresponding alphabet computer key.
Type the alphabet in order, from A-Z using the Braille stickers on the keyboard. Pause for several seconds as you touch each Braille letter to allow your tactile senses to memorize the feel of each letter. As you pick up speed, continue to consciously acknowledge each Braille letter solely by touch. Practice Braille anytime you sit down to your keyboard.
Select at random any letter on the keyboard with one index finger. Identify the Braille alphabet letter aloud before verifying the correct answer. As your Braille reading skills advance, you will be ready to graduate from practicing on the computer keyboard to practicing with bona fide Braille books from a library.