Viewers can vote by clicking on the on-screen buttons (happy & sad icons). The gauge will display the average user sentiment over the video player for viewers and also on the Twitch Dashboard for the broadcaster. The alternate gauge mode displays cheermotes instead of the dial to represent the current cheer average.
Broadcasters can make the Feels Meter pop up on their viewers screens from the Twitch Dashboard by selecting the Overlay > Feels Meter > Popup button. Viewers can open and close the meter at their discretion and the meter will close itself if the viewer doesn't vote within 10 seconds.
keywords: extensions, overlay, feels meter, sentiment, emote, cheermote