The sign for "bathroom"
is made by forming the right hand into the letter "t." The palm side
is facing away from you. Shake your hand side to side a couple times. Some
people use a twisting movement instead of the side to side shake. Either
"How many bathrooms do you have in your house?"
= YOUR HOUSE, HOW-MANY BATHROOM?
A frequent question in households with children and/or developmentally
disabled folks is, "Do you need to go to the bathroom?" This can be
signed easily by simply doing the sign for bathroom while at the same time
tilting your head forward a bit and raising your eyebrows.
"Do you need to go to the bathroom?"
Note: You might be wondering why the sign "BATHROOM" uses a "T" handshape.
It is probably because this sign can also be interpreted to mean "toilet."
Most of the time though the sign should be interpreted as "bathroom."