Professional !!??
If you have to do it seriously then it's probably the first time you do it!
And if you can't do it at all , then you have to look like you are trying!
If you need to show people that you're capable by acting professional then your work is not delivering that message for you!
If they think your attitude sucks and you're still working for them , then your work is pretty damn impressive!
Meetings have the very strong effect of making the person with all the money feel comfortable and all the others numb.
A meeting is a ritual in which people throw stones at each other while still smiling.
A team leader is someone who decided that he's too good to work , probably is fat, smokes, married or is trying to marry, because he needs challenges in life, so food ,cigarettes, kids and spouse and wife/husband hunt serve as a good enough purpose.