Watch out for these behaviors that can make all smart people look dumb
7 Frowning at Work
Frowning at others is always an unhealthy practice and more so at work. It will make you look unfriendly and you will be considered as less intelligent than others around you. Research studies conducted recently have found that those who have smiling faces seem to be more intelligent and can be considered to be trustworthy that those who have angry faces.