Aggressive people often push their own ideas or try to force others to follow them.

Someone who is passive will usually not resist the efforts of others.

(An aggressive person pushes or attacks, and a passive person doesn't resist.)

An optimistic person believes in a positive future.

Optimists see a glass as half full rather than half empty.

The opposite of an optimist is a pessimist.

(A pessimist sees things with a negative light and has little hope for the future.)

Sensitive people are emotional and have strong feelings about things.

It's important to be careful when dealing with sensitive people because it's easy to upset them.

Insensitive people don't seem to be aware of or care about the feelings of others.感觉迟钝的

(It's important to know how to act around extremely sensitive people.)

A mean person doesn't treat other people well or with kindness.

Mean people often enjoy making people suffer for their mistakes.

To be kind is the opposite of to be mean.

(He was really mean to her when she disagreed with him and he told her to shut up.)

Conceited people have a very high opinion of themselves.自负的，自高自大的

They often talk about how great they are, and tend to exaggerate their strengths. 夸张;

Modest people don't show off their strengths, but are often very good at what they do.谦虚的，谦逊的

(Modest people are often overlooked in a job interview because they fail to communicate their strengths.)表达; 显示：清晰地揭示;