I'm a very spiritual person, and I believe in God and all that kind of stuff. So my perfect type of guy would be spiritually grounded, extremely respectful and funny because I love to laugh.
Honestly, I like someone who is really grounded, super sweet, honest. I need them to have a sense of humor. I need them to laugh at what's funny, I need them to get jokes and be funny and be witty and sarcastic.
I would absolutely recommend against excessive positivity and optimism. Any positive emotion that you're infusing into a workplace needs to be grounded in reality. If it's not realistic, sincere, meaningful, and individualized, it won't do much good.