a) At any social event, you are probably going to introduce other people to each other and talk with more than one person at a time, which makes conversation much more interesting.
b) Suggest an informational advantage: you know both sides and you usually know why the two should know each other. Meanwhile, I do not know anything about each other.
c) The first impression sets the scene if a person communicates with you. or not.
d)it's not good because it will feel bad
