At the IV coffee house (mixed college students, mixed majors, etc), we
asked people to play tic-tac-toe, and this is what we found.  About 70% of
the people started with an X in the corner, about 15% started with an X in
the center, and about 15% started with an X in one of the outside middle
spots.

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Fish Rules:
1. Win
2. Block
3. Take a corner that leads to victory, or take another corner
4. Blah - any other square

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Other Rules
1st Move: Take a corner
2nd Move:
  If O is NOT in the middle: Take a corner not adjacent to the O, and not
       opposite of your first X.
  If O is in the middle: Take the corner opposite your first move.
Subsequent Moves (prioritized as follows):
  1. Win
  2. Block
  3. Take another corner

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Sam's Rotational Observance... we can't explain in e-mail.

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Psychology brings us to a whole new level.  A learning database, even for
tic-tac-toe, is extremely complicated.  We think that we should start with
X in the corner.  X starting in the center is only advantageous if we can
make use of a learning database.