Actually, Kristen, I’ve noticed on my own job that the bosses tend to promote their friends: those with whom they laugh, talk, and have lunch. So your question is a good one.
If it were simply a matter of getting work accomplished, I’d probably be higher on the totem pole myself. Although I produce a lot, the only thing my diligence has earned me is a workload increase: no promotion, and no raise. So I understand your desire to ascend the corporate ladder by drawing people in with workplace banter. The problem is that you don’t want to lose your true self in the process.
If “jokey” is not your natural personality, please don’t make a pretense – you’ll come off as inauthentic, and you might not receive the position you want.
Try this: Since you’re very knowledgeable, make yourself readily available whenever someone has a question. Practice conveying complex information in a simple and straightforward way. People in junior positions may begin to regard you as their informal coach, and it will put you in a positive light with your supervisors. When promotion time comes, you just might snag yourself the leadership position that you crave.