The whole theory of staying 'professional' in today's business world is, for the most part; bullshit. People who need to remain professional and speak professionally are:
a) People who do not belong in the position they are in. These are the people who put their time in a certain business or industry and have a great title, but bring no new ideas or motivation to the table. They compensate for their incompetence by trying to 'sound' like they know what they are talking about.
b) People who represent a terrible product or service. After reading this, you'll notice one thing: Some of the best looking and sounding marketing materials you will see - come from the most boring, un-innovative people in the business world. These are the same people who will send you emails that are paragraph after paragraph of garbage, buzz words and bullshit. My favorite business people are always to the point and direct.
When was the last time you saw Tom Brady tell one of his receivers, "Wes Welker, I must say that is one of the finest completions we have seen in this organization in quite some time. Your annual review will be undoubtedly positive if you keep that up."
ARE YOU KIDDING ME!!?!?
Your 'organization' is a team. Teams thrive on structure and motivation.
Be a Brady, not a Boob. Reward people on a human or personal level. Stop focusing on 'trying to be more professional' and focus on being more personal. People buy YOU. Not your business acumen.