행세

〔行世〕

1. behavior; demeanor; deed
An act of doing what one is expected to do as a human being in the world; or such an attitude.

2. pretending; pretense; posing; acting
An act of faking one's identity, passing oneself off as someone else; or such an attitude.

3. behavior; attitude
An act of behaving in a group; or such an attitude.