So true. I know 3 or 4 different signs for birthday. I prefer the one where you make the b handshape and then brush your cheek in an up an down direction but most people sign it differently so I have to sign it their way.
Ditto for the ASL sign mean. The one I learned at VSDB is done by twisting curled fingers around your chin to the left. Most deaf don't sign it this way. At MSSD, it was done this way by curling your fingers on both hands and striking the fingers on your non dominant hand with your dominant hand.
