What do you mean? Start out with, "Hi" or "Dear ___" Is that what you mean? If you're looking for an opening sentence, how about, "How are you?" or "What are you doing today?" or How's your family?" or "Guess what happened at school today?" Does that help?

Uum, I would just put in the title and everything and leave it. Wouldn't you? Oh, do you think it might look stupid up there with all of the other reasonable sounding names? I wouldn't worry about it, just stick it up there and cross your fingers. Good luck

Might be a tumor. did you take him to the vet?