We as controllers sometimes find the urge to immediately rush to open, rather then wait and actually study the airport before opening. Don’t be that guy. Check off the list of things you should do before you open.
When you’re live in the session, be on the lookout. Get into a flow of checking the pilot’s aircraft type via the flight strips or by clicking “show information”. You’ll need that rhythm to stay consistent and on top of things.
Periodically scroll through the flight strips and double check. Don’t let any aircraft slip through the cracks.