1) No its never good to give someone the cold shoulder
2) Add something interesting like a video or make a story (fictional would be good)
3) ..i think this is more of a personal question so you would have to choose this one
4) You could ask the person how there day is and ask them what they like to do to see if you have something in common
The answer is A hope this helps good luck
Various Communication sources, i'm not really certain i'm tired but Credibility refers to a person's perception of the truth of a piece of information
C- her, sounds like the best fit for that sentence.
