How do you record videos in the night with a Panasonic Lumix DMC-ZS3 camera?

When you usually record with a camcorder there’s a light for you to turn on, so that you can see the people in the night when you record. But how do you do that on a Panasonic Lumix DMC-ZS3? When I record with it in the night, I usually can’t see anything on it, like you can’t see the people when you record. You just see a blank black screen. So I’m wondering how do I have to use it in the night to record something?