Well that's the thing, you can't go using that information to understand ATC procedures as you will have no idea what is going on apart from what you can see. You'll only be able to see aircraft which are ADS-B equipped. On top of that, what you see on the radar and what you hear on the R/T is only half of what is going on.
The only way to understand what goes on in ATC is to organise a liasion visit and sit, watch and listen to what is going on. If you're lucky an ATCO might even try to explain what happens
There is also a security issue. Besides, we don't want people watching when we cock up!
