Hi @AmanyZakaria, welcome to the community.
If you are joining the webinar as an attendee, typically you will not be sharing your webcam or microphone at all. In a GoToWebinar only the organizer and panelists have the option to share their webcam, talk on the conference call, and present (share their screen) in the webinar.
If the webinar organizer decides to unmute an attendee or promote them to be a panelist, they will then see the microphone and webcam options in their control panel. Once that happens you can select which microphone and webcam connected to your computer are used.
Glenn is a member of the GoTo Community Care Team.
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