Silence
It's a funny concept: some people thrive in it, others are comfortable in it, and some people can't stand it and avoid it at all costs. It's one of life's important skills to be comfortable with silence and being happy in your own company.
keeping life busy and noisy so you don't have to deal with the voices in your head, and to deal with the problems and demons.
Those people who are never single because they jump from one relationship to the next for fear of being alone, or the ones who need every single minute, if every day is accounted for and filled, so the silence doesn't seep in.
Between certain people, silence can be tense or awkward. Maybe sometimes comfortable, and normally those people have been friends for a long time.
Silence isn't always a bad thing.
Silence + Time produces the best thoughts.
In some situations, silence tells you everything the person isn't.