When reading books to young children (5 and under), make it interacrive. If you're reading "Brown Bear, Brown Bear What Do You See?", for example, ask the kids what sound a duck makes when you're on the page that shows the duck. Get them to count with you during number books. Ask them to identify the items pictured for each letter in an alphabet book. If the book has a chorus, or a repeated phrase, have them to help you with it. With "Chicka, Chicka, Boom, Boom!", I tell the kids to clap their hands and yell "Boom boom" every time I read the "chicka chicka" part. They love that.
But do NOT ask open-ended questions of this age group, like "Have any of you ever seen a duck?" If you do, be prepared for long and rambling monologues about how once? This one time? My big brother petted a duck? And the duck's name was Quackers? And it bit him? And he had to go to the hospital? And he was very sad? But the doctor gave him a lollipop? And I like lollipops, but I didn't get one? Do you have any lollipops?