How do I Comment on a Voicethread?

There are three kinds of commenting features: 1. add an audio file (inline, as an upload, or over the phone) 2. capture yourself on the webcam and 3. write a text comment.

The first time you use the webcam or record buttons, you may need to allow the Flash Player to access you computer’s webcam and microphone. 

You may also draw on the slide while you are recording a comment. Once the recording has begun, simply choose the color with the mouse, click/hold, and draw.

Finally, you may navigate to the exact part of a film clip you want to comment on.