A student asks:
What is the difference between THIS and the second version of HERE that
points at the ground?
The one-handed version of HERE-[version-2]-[index-finger-handshape]
looks and moves very much like the one-handed sign for THIS.
Distinctions can include HERE-[version-2] will often tend to use a
slight double movement. THIS will often be used to mean IT and point at
an object if the object is in the signing space. Also, THIS sometimes
will (rarely and not recommended -- but it can) use the non-dominant
palm-up flat hand as a base for the dominant index finger.
The above distinctions aside, the two signs are the same.
An interesting note about those signs (HERE-vesion-2/THIS) is that most
signers "think" the handshape is an index finger but what often happens
during typical signing is when they bend their wrist to point downward
the index finger turns into a downward pointing "G" hand due to the
tendons in the wrist pulling on the thumb. Of course this handshape
change (or not) varies from person to person depending on the
flexibility of their hands.