Switch views: - 3x3 Grid view (only available in Skype for Windows, Mac, and Linux).
- Grid view.
- Speaker view.
Select the arrow next to the microphone to bring up additional audio options: - Select a different microphone device if you have one connected.
- Turn noise cancellation on or off.
- Select a different speaker if you have one connected. This will also enable your speaker phone option.
Select the arrow next to the video button to bring up additional video options: - Select a different camera if you have one connected.
- Select Choose background effect. This will allow you to make yourself the priority and blur or change your background in a video call. (Not supported in Linux)
- Select Webcam settings if you would like to make any adjustments there.
Add people to your call. 
Open your chat during the call. 
Share Contacts, Location, and other add-ins.
Open the chat window in full screen. - Select the Return to call button to return to the full screen call view.
Raise or lower your hand in group calls. - Raise Hand during a call and the group will receive a notice that you raised your hand.
- After you've been acknowledged or if you change your mind about speaking, select Lower Hand.
- In moderated groups, the moderator can lower participants' hands.
Share your screen during the call.
Send a reaction during your call.
More options, to Start recording, Take snapshot, Turn subtitles on, Turn off incoming video, Hold call, go to Audio and Video settings or if you can, Choose background effects (not available in Skype for Web) during a video call.
See who you want to see (video calls only). Switch between you, or your friends' video feed by selecting any participant in the call and dragging them to the main calling window.
End the call when you want to. Select 
Open recent chats to end the call from your ongoing call in your Recent chats as well as see how long you’ve been on the call.
Resize your video preview. During a video call, hover your mouse over your video preview and use expand to make it bigger or smaller.
Pin/unpin yourself or others from the call screen. From a call, select the three dots next to the name and then select Pin. You will know you are pinned if you have a 
pin next to your name.
Switch between cameras (video calls only). During a video call, right-click on your avatar to select a different camera.
Chat with someone 1:1 from a group call. During a group call, right-click on the participant and select Send message.
Mute or Remove from call (group calls only). Hover over any participant in the call, and then select the down chevron next to their name to mute or remove them from the call. If you mute or remove someone, they will receive a notification of Another participant muted your microphone or You have been removed from the call by another participant.
Zoom in on call screen. When on a call where someone is sharing their screen, participants can use the 
zoom button to zoom in up to 300%. Click and drag to move the zoomed in screen.
