I would suggest you just try to be yourself, unless you are always over friendly. I struggled with this "fine line" as well but if the W's do not like who we are, then their loss, right?

Me41 W43
M9 T13
S8 D6
Bomb 1/4/08
EA Discovery 7/10/08
S 6/13/09
2nd EA/PA Discovery 7/15/09 (same guy)
D-Day 3/8/10