There is a way to communicate with each other very quick and also without a single word!
Want to wish a good morning, call a friend to your place, report that the work is over, or even just to remind myself?
Hey. Just say Hey. Do it - simple. Choose a friend, tap and he will get your "Hey".
No borders, no long reading messages. It all depends on you and context.
Hey, youre still not using the application? So come in and start talking!