To 'Approve Leave' you have the following procedure:

After you login go to leaves > Approve there you will find 'Approve Leave'.

This is 'Approve leave' page. Here, you will find three tabs (Pending Leaves, All Leaves, Approve & Reject).

This is a table where you can find 'All Leaves' wheather the leaves are in Pending, Approved or Reject status.

This is where you can find the status of Leave and Employee Details.