You request a password reset here. We will send you an email which contains a link. Clicking on this link will enable you to set a new password.
Please note that it's not possible to change your password if you registered on Pawshake using the "Sign up with Google" option. In this case, you need to use your Google password in order to log in on Pawshake. We're not authorised to change it, but you can of course change it in your Google account itself.