How to feed aliens into honest and kind teenagers

The key is to give him delicious food, such as beef hotpot, roast leg of lamb, salmon sashimi, avocado salad, crispy puffs, fried chicken beer and Qimen black tea. Experiments show that aliens are easily dependent on these foods, and they also have feelings for those who give them to them, and then they are educated by you to be honest and good teenagers, and they have no mind to do stupid things like destroying the earth.