I evaluated the board for immediate wins and threats. I see that my pieces in column 3 form three in a vertical line, but column 3 is blocked above. Instead, I opt to create a potential horizontal threat on row 4 by adding an O at column 2, so that row (columns 2, 3, and 4) has three O's in a row, forcing my opponent to block a potential win. Thus, column 2 appears to be a strong strategic move to set up a future win while not giving my opponent an immediate advantage.