For this you have to follow the following Steps:
--Login with Admin
--Go to the option of People
--Now you have to click on "permissions" option
--Here a list of various permissions is open
--Now search "Toolbar" where you have to tick on the option of "Use the administration toolbar" for authenticated user
--Just save it and it done.
I want to add Logout link in Primary Tabs in user profile page so user logout directly by that link