Click on Edit tab to change the details of task. The Edit Task section appears as below.
You can change the details of task and click on Save button to save the changes.
When any requester takes your task, you can see that task in Pending tasks as below.
Click on Pending tasks link available at top left side navigation.
The Pending tasks section appears as below.
You can see the list of all your tasks that are taken by any requester to perform. Once you approve the task, the requester will be able to perform that task. Presently the status of task is displayed as Pending
Select the checkbox corresponding to the task, to which you want to approve. Click on Approve button and the status of task is changed to Approved.