Good day to all fo you Ladies & Gentlemen of this forum !!! Last october I picked a puppy I saw in the street. I must admit that, what I liked the most about him, was the fact that he looked so weak and hungry, but as soon as I picked him up he didn´t stop growling until I took him to my apartment. Nobody wanted him because they thought he was sick, and he would die in a couple of days. I went to the vet, and all he had was bad case of lice. I bought him everything, got him his shots and were on our way. He is my baby, thats all I can say. HOWEVER, I urgently need to show him some basic stuff. I need some guidance from you guys, cause this is over my head. Can anyone please tell me where to begin?

Bring him everywhere is good, you are socializing him. Sit before eating, or down before eating, then give a release word or phrase, is also good for manners.
Walking on a loose leash, waiting for you to tell him what to do, not him telling you.
If we knew more of what you are having problems with, it would help to guide you, but that is a small start. Keep us updated!