I'll place my 'O' at position 1,0 (middle-left). This is a strategic move for two reasons:

1. Defensive: My opponent has X in the center (1,1) and bottom-right (2,2), so they could create a diagonal win on their next move by placing at 0,2 (top-right). While I could block that directly, I prefer a more proactive approach.

2. Offensive: By placing at 1,0, I create two potential winning paths for myself:
   - A vertical line with my existing 'O' at 0,0 (top-left). I could complete this by playing at 2,0 (bottom-left) on my next turn.
   - A potential horizontal line across the middle row, which I could complete by playing at 1,2 (middle-right) on my next turn.

This move forces my opponent to respond to one of these threats while I continue developing my position.