My boss gave me a feedback that she thinks I am "too nice" at work. Some specific examples would be:
(1) Don't know how to say no to people's request.
(2) Focus too much on contributing to others. Instead, I should spend more effort on developing my skills instead of contributing what I am already good at.
(3) Sometimes, in respond to other people's request, I devote too much time and effort. I could have spend less time and deliver a more simple output.
My hypothesis is that the above statement means that I am too "naive" and not "seasoned/tactful/crafty" enough. My boss said that although I am "people-oriented" and "team driven", I should make a balance of being "too nice". Could anyone share their views or experience? I know that I shouldn't be too mean and crafty, but I do want to make some change so that I seem seasoned and mature in a professional setting.
Thank you so much for your advice!