You can view and select approvers, request for approvals, check status and approve project activities from the Approvals tab.
View and Select Approvers
Select an activity and go to Actions > View Details > Approvals.
Click the Edit button. Select the approvers and press the Save button.
Request for Approval
Select an activity and go to Actions > View Details > Approvals tab.
Click the Request For Approval button.
Select an approver and click the Request Approval button.
Approving an Activity
Select an activity and go to Actions> View Details > Approvals tab.
Click on the Approve button.
From the drop-down menu select the status of the activity (Approved, Approval Denied, or Conditional Approval Granted), check the Approve box and click on the Update button.