The observed most often occurs, so Hao. That is, if a particular person, other people who see Hao to Hao as similar to a behavior that is able to convey to each other.
Noting the finding that most often occur together. That is, if a person yawn. Then others saw it as a yawn. Similar behavior can be conveyed with each other.
From the observation of finding the most often occur after that. That is, if there is any one person yawn. Then another person I was finding Stewart three. Similar to a behavior that can be transmitted to each other.