First is the "New updates available" that appears at the top of the screen, ticket or queue, when someone has made a change to the screen you're on. It's a good idea to reload before continuing.
Second is the icon that indicates someone else is viewing the ticket: https://www.screencast.com/t/fyRY1w39T You can hover over it to see who it is if their picture has not be uploaded to HappyFox yet.
**If you haven't uploaded your picture and created your signature yet, please do so.