This game is full of great people who will be glad to help you and walk you through stuff (if you are willing to listen) Then there are about 10% of the people who are elitist and have a iLVL over 9000!!!!! and you need to bow to them.
Let them blow steam and just do what I do. Say random and stupid stuff to them that makes no sense. If they are mad you are not decked out in level 50 gear while in the lvl 45 trial,you let them know you have an uncle who once punched the president in the right knee. Then sit back and watch them rage because you can care less about him.

When all else fails please refer to my sig that I have used for a very very long time.