By clicking on the Live button, you can control the activity you are collecting from all the online users in real-time.
Events are all the actions done by users that have taken place on the website and give you information. To fully understand this concept, examples of an event would be the click on a determined button or when a user logs out.
Here, on the Event Stream section, you will find all the information about your app in real-time. This will provide you relevant information about your page's users.
The columns of information can be customized so you can obtain the information that best suits your needs.
At the bar on the left, you could add conditions to the filters, which will allow you to segment the information. You can filter the data by specific attributes and by the attributes associated with the events.