I think it it difficult to answer this kind of question "What is your personality?".
Even in Japanese, I'm gonna give some serious thoughts about who am I? and what kind of personaity do I have?
I think, just as my personal thoughts, I am very down-to-earth and matter-of-fact when I think about my personality not only for Business situatoin but also for Private situation, but at the same time, or I could say I'm a kind of ordinaly or bland personality.
Also I think I am mild-tempered, in any circumstances I do not get angry so much except that my kid is saying something selfish.
Lastly I think I am kind of shy. I'm okay with Business situation, I can talk everybody with open-minded. But in private situation like party when many strangers are there, I become shy and I cannot talk with so many people.