ESP is to send a private message to your Friend who is online. It works like whispering a friend.
Mail is to send a message to your Friend when they is offline. Your friend can read the message once your friend gets back online. You can also receive Mails by checking your Mail everytime you get back online to make sure you won't miss any of your friends message.
Below are the step-by-step guide on how to ESP or Mail.
To Turn off ESP. Click your Avatar, a pop-up menu will appear. Select "status" then click "Turn ESP off".
To Turn on ESP. Click your Avatar, a pop-up menu will appear. Select "status" then click "Turn ESP on"
Video Tutorial:
You can pause and play as you follow the video guide.
