There
are three ways in which you can turn the visibility of joint labels
in the scene view on and off:
Use
the
Display > Animation > Joint
Labels or
Skeleton > Joint Labelling > Toggle
Selected Labels to toggle on and off the visibility of
joint labels in the scene view for selected joints.
Set
the visibility of a single joint’s label from the Attribute
Editor. To toggle the display of a single joint’s label
in the scene view, select the joint, open the Attribute
Editor, and turn Draw Label in
the Joint Labelling section on
or off.