To do the sign for "boy," grab the brim of an imaginary baseball cap
(sticking out from your forehead area)..
BOY / male:
The sign (above) for BOY can also be used in context to mean MALE and
is one of the versions of MAN but "not" the most common version of
MAN)..
To specifically refer to a little boy (or a "little man") you can add the
"SHORT-in-height" sign.
SHORT-in-height:
The sign for "Girl" (or "female") is made by forming your hand into an "A"-hand and then trace along your jawbone with the tip of your thumb - starting near your ear and moving to near your chin. If you specifically want to indicate the concept of "girl" as in "a little girl" then you can use a bent hand to show the the height of the girl.
GIRL:
For more information, see the "girl" page:
GIRL
Also see the "boy" page: BOY
