Everybody has a question they need answered, particularly a curious audience, but at the same time, that audience needs to be asked questions itself. The best wy to pose all those, or any other questions is through a curious voice.
How do you arouse the interest of any audience about any given subject? It is by posing questions, make it curious abut a certain subject,but in many cases, also provide answers to these questions. Still, posing those questionsin most cases needs to be done throug a curous voice, the one that makes the audience hardly wait for the answers or that makes the stimulate to search for the answers themselves.
The audiences in the US are quite familiar with the PBSTV series for pre-school kids called "Curious George" that stimulates young children's interest to explore scientific elements around them. On the other side of the ocean, UK's "Curious Voices" stimulates young adults to explore great art and culture. Still, practically any type of an audience has questions or needs stimulation to explore certain subjects or even products, and a cruios voice is the one that can stimulate their imagination.
A curious voice can actually be in any tonal shape or form as long as it is able to trigger the interest of its audience. Its tone has to be intriguing, sometimes jovial, at other times more serious. It all depends on the subject matter towards which it has to stimulate the curiosity of the audience. Since in many cases it is geared towards a younger generations, the vocal tone has to be adopted towards such an audience.