【First time】
　・Select the person you want to send a message to from the Contacts or History tab.
　・Tap the message icon.
　・Enter your message and send it.

【Second time or later】
　・Tap the Message tab.
　・Select the person you wish to send a message to from the list.
　・Enter your message and send it.

Please note that messages that have been posted for a certain period of time will be deleted automatically.