Tags allow you to categorize and filter. Make a tag if Want to add certain data to all the tasks so when you Need to sort or search by specific data fields just klik the tag name and you can get all the task with that Tag. You can add which teams are given access to view tasks by adding followers in the desired Tag. In this way each team works Properly. You as a team leader easy to track developments.
to describe prospective customers who are prospects in your Task. Use #leads for each of your tasks related to prospect customers so type in your search for #leads then list of related tasks will come out.
tag meeting you can use to categorize meetings that you have ever done. Make it easy when you are looking for data on your meeting activities.