It’s going to be hard to not give spoilers because I’ve read a lot before and I remember the major parts of the story. I’ll try to make this purely on the cover:

I think that the man on the cover is really old and that he is the giver for a few reasons. One is that he is wrinkly and has grey hair. I’m pretty sure no sane person would die their hair grey (I thought wanted to look younger). The wrinkles is probably not from being in the bath tub for too long, but who knows. The old man has pale eyes (hint for later chapters) and I’m just guessing so I think that since he’s under the title, he might be the Giver. Since I can’t give evidence from the text it’s all just a wild guess. I think that the man lives in the forest. We’ll just have to wait and find out.