Punjabis, north indians are usually extroverts, talkative, often singing songs, laughing loudly.
On the other hand people who are quiet are often falsely labelled a security threat without any legally valid proof.
Yet the fact is that the talkative nature depends to some extent on hereditary, ethnic factors.
The domain investor met a lady from Shimoga who was quiet , she labelled the talkative people as punjabis.
When the domain investor visited north karnataka for property related work, she noticed that many people are quiet, they do not talk much. The family background determines to some extent whether a person is talkative or not, it is time the security agencies stop exploiting people because they are quiet.