Asking

How To Thank Some One Or How To Give Him A Vouch

look at my post. now look at the bottom of it. you see where it has "Reply, Reply With Quote, Thanks", you just click that button

Now if you want to add reputation, look on the left side. it is the button on the left.

and how i make vouch or record my successful trades or sell or scammes like all do

you need to edit your signature for that kind of stuff.