If your Course Leader has added the block ‘Online users’ you can view other UoG Moodle users who are online at the same time as you. Click their name to view their profile and send a message to them. You can also message other staff and students by clicking their profiles within a discussion forum.
A student or member of staff will not see your message until they next access Moodle although they will be notified that a Moodle message has been sent to them via email. If you have an important message to convey you might want to consider other ways of contacting the individual such as email or telephone.