I'll place my "O" in the top-right corner (0,2) for two strategic reasons:

1. Blocking potential threat: My opponent has "X" in the center (1,1) and bottom-right (2,2), which could form a diagonal win if they get the top-right corner. By placing my "O" here, I prevent this threat.

2. Creating win opportunities: This move creates two potential winning paths for me:
   - I now have "O" in positions (0,0) and (0,2), so completing the top row at (0,1) would give me a win
   - I'm setting up a potential diagonal win from top-right to bottom-left if I can get position (2,0) later

This move combines both defensive and offensive strategy, blocking my opponent while setting up my own winning paths.