Just because of the acquired personality.
There are the following constellations:
Capricorn: A typical workaholic, it is easy to ignore other things when doing one thing seriously. So it looks cold, of course, when he is doing something seriously.
Virgo: Similar to Capricorn, which type is too serious?
Scorpio: In fact, they are just noble and have no other meaning.
Leo: Some people are arrogant and seem too lazy to talk to others.
Libra: They just don't have his deep feelings for others, so it's hard to talk to them, but it's just a phenomenon.
Aquarius: They are just afraid of strangers. Just get to know them.
for reference only