Why do males act so serious around me?

Apparently I have a strut and have a strong aura.

Especially since I am not like other teenage girls, I am very political and speak my mind etc etc do weight lifting, wear combat boots etc.

But even when I am not being serious, boys just seem to act different around me. They act very serious... but around other girls they act very immature and much more relaxed...

What do you think?
Why do males act so serious around me?
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