Since my opponent has taken the center position (1,1), I'll place my first O in the top-left corner (0,0). This is a strong strategic choice because:
1. Corner positions are valuable in Tic-Tac-Toe, especially when responding to a center opening
2. This prevents my opponent from creating a potential fork involving this corner
3. It gives me potential winning lines along the top row and left column, as well as the diagonal
4. With this move, I can force my opponent to play defensively on their next turn if they want to block one of my potential three-in-a-row opportunities