Welcome Sotanax, if you are talking about the first poop of the day it is the biggest, they usually hold it overnight.
As for talking there is not a 100% probability they will talk, most do but I have found a few that didn't. Likely yours will eventually talk, some do early and some don't until well after the first birthday.
Yes you do need a cage, like Cesarsdad said you need it for the times you are not at home. Too many things they can get into, also they need some time to be just themselves. There will be times they need the safety of the cage. Encourage him to go in the cage and see what a safe place it is. Maybe he doesn't like where it is placed. Usually they like one side against the wall and not in front of a window.
This is just a little more advice, others will have some more. Keep us informed on the progress.