There are two officials in a game of rounders. They don't really need equipment other than a clipboard and a whistle.
they are both to use your mouth
Use lemon juice! It shouln't be used over the mouth piece or else your in for a treat!
wolf whistle
all of them man
I whistle when I'm scared.Sometimes, I whistle but only make a blowing sound.I whistle to keep a good mood.
what is a whistle used for in first aid
use spin bowl
The referee blew his whistle to signal that there was a penalty.
He blew a whistle to signal the start of the race.
You whistle to it.
no, they can not, but some umpires will not notice.