The sign for "now"
is made by placing both of your hands in front of you in "Y" handshapes. Each hand should be
pointing upward. Sharply drop both of your hands a short distance. 
Note: if you use a small bounce in this sign, it can mean "TODAY."
Or
you can combine the sign "NOW" with "DAY" to mean
"TODAY."
Here is an old version of "NOW" that you might still see in use in some parts
of the world.
Note the different handshape? This version is using "bent hands."
