Instructions
Turn off your DS. Remove any games in the DS game slot or the GameBoy Advance slot.
Flip the power switch into the "on" position. Let the DS power up completely.
Remove your stylus from the stylus holder on the DS. Tap the touch screen with your stylus when prompted.
Wait for the main menu to appear. Tap the "PictoChat" option located on the left side of the screen.
Open up a chat room once "PictoChat" starts up. Tap "Join" with your stylus or hit the "A" button. DS users have four chat room options.
Tap a letter on the keyboard with your stylus. The keyboard is located on the touch screen. Continue hitting letters with your stylus until you fully type out your message.
Tap the "Send" button once your message is complete. The message appears on the top DS screen.