Name

Handshape:  "H" handshape on both hands.
Movement:  Tends to be a double movement

For image go to:

http://lifeprint.com/asl101/pages-signs/n/name.htm

meet

The sign "MEET" uses "index finger" handshapes.  The two hands "meet" in the middle.

For a video go to:

http://lifeprint.com/asl101/pages-signs/m/meet.htm

strong

The sign for "strong" has a couple of variations. A good general version is to form fists and then pull them out away from your body a bit as if flexing your biceps. 

For images go to:

http://lifeprint.com/asl101/pages-signs/s/strong.htm

why

The sign for "why" is made by touching (or coming near) your forehead with the fingers of your dominant hand then while bringing your hand forward and down , change it to the letter "y," keeping your palm facing you. 

                                             For video go to:

http://lifeprint.com/asl101/pages-signs/w/why.htm

who

A good general variation is to place the tip of your thumb on your chin with your index finger extended. Bend your index finger twice.  

For a video go to:

http://lifeprint.com/asl101/pages-signs/w/who.htm