Follow the link to your Zoom meeting or use a Zoom Test meeting and click the "Join" button
This will try and download a 'Zoom App' onto your Computer, disregard this and select "Join from your browser" instead
Then simply type in your name or what you want to be identified as and ensure that you've got the correct microphone and camera selected. This will show in the box on the right hand side of the screen where you can adjust your camera / hair before the meeting starts.
Then click join and enjoy your Zoom Meeting