As the organizer, you can share your screen.
To do so, click the Share screen button. You can select from tabs whether you want share entire screen or application windows.
The Share your screen dialog is shown:
Select the screen/window you want to share and click the Share button. Other participants will have shown this window in the central part of their meeting dialogs: (It is also possible to open a separate window with a shared screen by clicking this part of the dialog. This does not apply for Internet Explorer – the sharing window is maximized within the meeting dialog.)
The left-hand pane contains names of all attendees. The participant who is speaking is highlighted in the dialog window.