What are interesting social skills that can be picked up quickly?

What are interesting social skills that can be picked up quickly?

1. saying hello and thank you when needed.
2. Standing up to greet someone.
3. A firm handshake.
4. Body language.
5. Giving them the attention they deserve.
6. Listening to them and don’t peek at your phone.
7. How to make them comfortable.
8. Be honest and frank but not to frank.
9. chill