Hey @David Walker!
You'll receive notifications for all of the triggers listed on https://support.atlassian.com/trello/docs/receiving-trello-notifications/
If you're not receiving notifications, this is a sign that:
I'd recommend taking a look at the page I linked and start to watch some boards / lists / cards and set some due date reminders so that you start to be notified for things in Trello.
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