1. Don't try to resemble the role you are acting. Be him! You are not selnik when you act, you are who the role you are acting is. 2. It is good to be in character even though you are not required to. It helps you to understand the character even more. Because, when you take your character out to the real world, it becomes more real itself, surrounded by real environment and solid. 3. Friends or family or a stranger should not know that you are acting, because, it is only when other people don't know that you are acting, that you can say you are acting good. 4. Don't just read out the script when acting,.. understand what is written, what you (that is the character) are saying is and why you are saying it. Not only "what" matters in acting, but also how.
I don't know. But I would try to wach something that's in the same time. as when you are trying too act in. And try to place your self in it try too. imagine how what they would say if you said this or that. And try really hard to try to imagine. What life was like for then. for something in the past do what I previously said and talk to your grandparents. About what life was about and what life was like when they where kid.