During toy clean up time my 4 yo daughter had her arms full of baby dolls and clothes. She walked to the hall door and shouted, “I need help. I can’t get the door.”
Since I had my hands full of toys and was headed to the toy box I said to the other two munchkins, “Somebody go help her get the door open.”
The 2 yo immediately responded by going to the hall door and knocking on it.