ShiftNav provides a very simple mini user profile shortcode that allows you to insert the current user’s profile image and display name into the custom content area.
If the user is not logged in, it will not display.
[shiftnav-basic-user-profile]
You can wrap the shortcode in the ShiftNav wrapper class to give it some padding
<div class="shiftnav-content-wrap-small">[shiftnav-basic-user-profile]</div>
User profile shortcode in use with the App skin