I'm the reserved talker 95% of the time. If I go off there's a major issue. If you're not sure if I'm ticked look into my eyes and/or check to see if my eyes are cutting you like lasers. When a kid comes off the field and sees my arms crossed and my eyes burning into them, they know they'll hear "Coach X wants to talk to you." When I'm the assistant coach I play the good cop.
Then there's the way I coach BASKETBALL. But basketball has crowd noise issues and lack of stoppage of play baseball doesn't have to deal with.