Click the "Follow" button at the top of the "Profile" page of the user/team you wish to follow.
Following can also be done through the selection of the "Follow" button in the post box that appears on the "Home" page.
Send a friend request to a user by clicking the "Friend Request" button on the "Connect" button on the tab menu of the user's "Profile" page.
You can also send a friend request by clicking the "…" button in the upper right corner of a feed post in the feeds.
Click on "Connections" from the tab menu of the user’s profile then select "Cancel Friend Request."
You can also cancel a request from the "Connections" page by clicking it from the navigation menu. Then click the "Cancel" button on the user you wish to cancel your friend request under the “Sending Requests” section.