Press the buttons at the bottom when your chick asks fo something in the speech bubble. When you give the chick what it wants you get points. When you get 10 points your chick grows up and you win!
If the chick chirps during an activity you might not get the point, so just press the button at the bottom again. I got the idea and some of the code from here: https://scratch.mit.edu/projects/23171220/
