I'm choosing column 1 because it will place my piece adjacent to my existing piece at column 2, starting to build a potential horizontal connection. This is a proactive move that begins forming my own threat while still keeping an eye on my opponent's two-piece horizontal line. By playing here, I'm developing my position while not creating any obvious opportunities for my opponent to capitalize on. If my opponent focuses on extending their line, I'll have options to either block or continue developing my own threats.