Logging in with a new nickname
You can turn the 'Remember Me' switch off again by doing the following.
Click on the 'Settings' slider icon near the top left of the main window.
Select the 'General' section on the left pane.
Click on the 'log out' switch
You will be logged out of Paltalk and taken back to the log in screen.
You can now turn off the 'remember me' switch and either manually enter a new nickname and password, or select your desired nickname using the pull-down arrow in the nickname entry box.
You may simply just log out, and then choose what other username you would like.