The sign for "brother" uses a modified "L"-hand that turns
into a "1"-hand as it moves from the forehead down to make contact with the
base hand (which is in a 1-handshape).
BROTHER:
Sample sentence:
"How many brothers do you have?" = BROTHER, HOW-MANY YOU?
The sign for "sister" uses a modified "L"-hand that turns
into a "1"-hand as it moves from the jaw down to make contact with the base
hand (which is in a 1-handshape).
SISTER:
Sample sentence:
"Do you have a sister?"
See:
BROTHER
See:
SISTER