1. Anne is outgoing, Peter is shy.
In the dialogue Anne invites Peter but Peter says he's a lone wolf. This shows that Anne wants to be around others, while Peter prefers to stay by himself because of his shy nature.
2. "I've got to fight the things out for myself!"
In this piece of dialogue, Anne is showing that she is still trying to figure out the world on her own and make her own decisions. She does not want someone intervening on her behalf.
3. "I spend half my night shushing her."
It is clear from this piece of dialogue that Mr. Dussel is becoming frustrated with the idea that he has to stay up at night and shows the conflict between them growing.
4. Anne states will go to Paris or be a famous dancer and the audience knows she will not get a chance to do these things.
Dramatic irony is when the audience knows something the characters on stage do not. In this case, the audience knows that Anne will not survive the Holocaust and therefore not be able to go to Paris or become a dancer.
5. Unbearable
Peter is a quiet observant child. He is not hurtful or purposefully unfriendly. He can be unbearable in Anne's opinion sometimes.