Chapter 12 Boy in Striped PJ's

(126) How would you compare Shmuel's voice to Bruno's?
We are given the feeling that Shmuel is a very shy polite boy who has learnt unfortunately from being so harshly treated from the soldiers to not speak his mind and just to be as quiet as possible.
(128-130) How would you describe the way that Bruno acts and reacts to Shmuel tell his story about coming to the camp?
Bruno is very quiet when Shmuel starts to talk about his life before he came to camp. Before Bruno though that Shmuel and himself were quite similar in how both of them were taken away from their nice homes but after he asks a few questions why he was taken away we get the sense that Bruno has a slight understanding that his situation is very different to the situation Shmuel is in.
(131) When Bruno and Shmuel talk about chocolate how is Bruno portrayed?
Bruno is portrayed as very rude and arrogant, he is shown to not feel any empathy towards Shmuel but we can understand this becuase of Bruno's innocence and lack of understanding.
(132) Do you think that Bruno understands the situation that Shmuel is in?
Even though we do get some hints during the chapter when Bruno reminds to himself not to be rude and no to ask certain questions.  We still get the sense when Bruno asks Shmuel to come over to dinner and when he tried to lift the fence up, he still doesn't understand the situation Shmuel is in.
(133) What is ironic about Bruno thinking 'the last think he wanted to do was be unkind to Shmuel'?
What is ironic about that is from the book we conclude since Bruno's dad is a Nazi soldier who is very high up commander we understand that Bruno's family is Nazi influenced who obviously for the Nazi is first Priority is to kill and get rid of the Jew's for the good of the country. What is ironic about this is since we as the reader understand from a historical prospective what the Nazi's actions to the Jews are, when Bruno says ''the last think he wanted to do was be unkind to Shmuel' it is ironic how he wants to be kind to Shmuel when everyone around him is doing the complete opposite.
(133) What is ironic about the statement - 'Bruno was of the opinion that when it came to parents, and especially when it came to sisters, what they didn't know couldn't hurt them.'?
Whats is ironic about this statement Bruno really thinks  that this small detail which in fact is a huge secret could be kept from them without any harm when in fact everyone around Bruno including his Parents are keeping huge secrets about that camp from him so in fact since Bruno is been kept in the dark from the secret about that camp he can't quite understand the significance of what he is doing.