The sign for "people" is done three or more different ways.
(Pity the poor unsuspecting ASL student--especially those taking a class from
a "my way is the right way" type of instructor).
I personally use forward alternating rotational movement (as if
pedaling a bicycle forward).
Many of my friends and associates also use a forward rotational movement.
Some of my friends and associates use a
backward rotational movement.
A few use an up and down alternating movement.
PEOPLE:
Sample sentence: What kind of people do you like?"
For another sample of "people" see: See: "animation."
PERSON / agent / "one who does"
(singular)
This sign, in general, means "person." It can be used to mean "one who does something."
For example, when used with teach, (TEACH + PERSON) it means
"teacher."
PERSON:
Note: It is also very common to see "PERSON" initialized with "P"
handshapes.