I really need help understanding my sociology homework?

[klt3494]

I really need help understanding this assignment, I just started the class and I know nothing about it, if someone could just help me get started with it, I am not asking for you to answer the question, thanks! "Keep a journal for a day; document ten social phenomena that you generally perceive as natural in your everyday life. Your journal could include notes on the way people greet each other, share public space, eat, and so on. Pick one and discuss alternative ways your daily life might proceed if this element had been different throughout history." I wrote down ten things but I don't know if they are valid examples. But then I researched social phenomena and I found examples as twitter and facebook. I just need someone to tell me what a correct example is for this question.