What is a denotation of 'play'? joke around to be active fetch

Read this excerpt from tim o’brien‘s “ambush” “i had already pulled the pin on a grenade. i had come to a crouch” which literary device is most clearly shown in this excerpt?

In 250-300 words, explain how the theme of social justice is explored in the novel. {to kill a mockingbird}

My cat and my dog like best friends