Could someone tell me what the voice style of Boo Radley (Arthur) in To Kill a Mocking Bird might be like?

I'm guessing his voice is timid / fearful but how would I show that in my writing? (Note: I'm supposed to be Arthur when I write these entries)

If anyone could write a few sentences showing the voice of a timid person... that would be great

Thanks

You could use words like : Maybe, I'm not sure, I guess. Stay away from direct statements....How do you talk when you are feeling bashful, unsure of a situation.