If you want to be successful in your work please, you have to be noticed by everyone in your office. In order to be noticed by others, you need to be worth noticing. In order to be worth noticing, you have to posses something remarkable / unusual / above average!! Everyone already have some sort of a perception about you. But, it is boring and not remarkable!! Then, you need to recreate something, add some value, do something extraordinary. Think and act differently!!
I have never convinced by a person with low energy & low confidence!! Life is too short to be boring and too serious!!