You're talking with some friends about the kind of clothes that you wear to work, versus during your free time. You say:
I tend to dress a little more conservatively at the office.
You're talking with someone who's interested in Japan but doesn't know much about it. You start discussing the differences between Japanese people and people from other countries. You say:
Japanese people tend to be rather reserved, in general.
Your friend just told you a story about a former college friend who's quite wealthy but still doesn't feel like she makes enough money. You want to show that you understood the meaning of your friend's story by summarizing it in a more general way. You say:
Yeah, people have a tendency to be unsatisfied with how much they make, no matter what their income is.
Your co-worker covered for you while you were on vacation. Now you've come back, and he's complaining about how difficult the work was. You want to joke about your job being difficult, so you say:
Now you see what I go through every day.
busy, difficulty, phrasal verb, usually, work 