35. A client, comprising: means for sending indications of audience member actions relating to a presentation, wherein the audience member actions are performed on the client which is remote from a source of the presentation; means for receiving content, wherein the content is based on: a determination of an engagement level of at least one audience member viewing the presentation, wherein the engagement level is based at least in part on the indications of audience member actions; and a determination that the engagement level is at least at an established engagement threshold value; and means for displaying the content.
35. A client, comprising: means for sending indications of audience member actions relating to a presentation, wherein the audience member actions are performed on the client which is remote from a source of the presentation; means for receiving content, wherein the content is based on: a determination of an engagement level of at least one audience member viewing the presentation, wherein the engagement level is based at least in part on the indications of audience member actions; and a determination that the engagement level is at least at an established engagement threshold value; and means for displaying the content. 36. The client of claim 35 , wherein the indications of audience member actions include a real-time indication of the at least one audience member's preference for the presentation, and wherein the preference is associated with a natural emotion, opinion, answer to a question, and/or amount of energy of the at least one audience member.