hit "NEW POST" and post some text (try formatting the text with the controls under the "gear" icon)
react to and reply to some posts
if you have two browsers open, or tune in on your computer and phone, you will see all activity is in real time (no need to refresh, you are always seeing the latest)
try the "InstaRecord" buttons ("RECORD VIDEO", "RECORD SCREEN", "RECORD AUDIO" to see how easy it is to post a video, audio, or screen capture clip