How do you make your boonie bigger on moviestar planet?

It grows when it moves up a level I think. My boonie is on level 0

It grows when you feed it, my boonie is on level 3 but is still the same size as when it started, and i havent yet leveled up on the feeding section, i got to level 3 in about 5 mins, but i havent had my boonie that long so i havent been able to feed it, only about 3 times so yeah

add me allypal