Calling a friend.
Carying books.
He's chasing after the dog.
She's swimming in the sea.
He is listening to music.
He's buying ice cream.
He's crying.
Doing homework.
He's singing.
He is laughing.
She is riding a bicycle.
He's playing with cars.
Drinking juice.
He's making a snack.
She's cleanning her bedroom.
She is skating.
She is watering the plants.
He is taking a sandwich!