Drag a female to a male or vice versa. Repeat this until you hear a kissing sound and your population goes up. When the mother exits the hut with a baby in her hands, take her and put her into the lagoon. Note: It must be filled with water. Do this by getting rid of the rocks that are blocking the water from flowing. When the child grows up, he or she will be a "golden child".
The first puzzle is to complete a hut, the second to master the herbs, and the third to get a master scientist. Take them to the building behind the research table and open a school.
You will need a minimum two kids for this trick. First, find a mushroom. Put one kid next to it then quickly put another next to it to obtain double food.