How do I use the Diana Multi Pinhole Camera by Lomography?

How do I use the Diana Multi Pinhole Camera by Lomography?

I’ve searched the web high and low and have even looked to see if there were any youtube videos about it. All websites just advertise the product or talk about what you can do with it, but no one has written about HOW you can do these things. Where is the button you press to take a photo, for example? If it permits you to take a photo with 3 pinholes, do you have to expose it to light 3 times? why is it so silent and why does it feel like it’s broken or something? no batteries?
Please help.