What do you do when you meet people for the first time?
Options:
- friendly
- smile
- greeting
- introduce yourself
- look over Let's think step by step:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
New people do not know us, hence we introduce them to us. Introduction helps in knowing new people. So, the answer is introduce yourself.