Is being serious a bad thing?

gabbyxx311
My friend has been accusing me of acting way too serious. She says that if I want to get a new boy friend that I need to "loosen up" and stop yelling and start laughing. In my eyes it seems like if I change my seriousness then guys will like me for something I'm not. All I want to know is if me loosening up would be a bad thing.

Do guys not like girls who know what they want in life?
Is being serious a bad thing?
3 Opinion