Imagine that you were Warbucks niece/nephew and when your parents had died - he immediately took you in, without any hesitation. Then a year after, you first meet Annie.
The red haired girl looks at you and says, "I'm Annie." "I'm Y/n." You say. "Is Mr Warbucks your father?" She asks you. "He's my uncle." You say to her. "Cool!" Annie says.
"Yeah, well I'm gonna go read in my room. Later, Annie!" You say to her and go read. Annie smiled and says, "I think I'm gonna like it here."