Refresh Your Media
On occasion, your Sococo client software might lose connection to the Sococo media server, which causes media issues such as people not hearing or seeing you (or vice versa). One quick thing to try to remedy this is to Refresh your media. This forces a reconnect to the Sococo media servers. (It's like kicking the refrigerator to get it running again!)
Right-click on your avatar and select Refresh your media.