I decided to play offensively by creating a horizontal sequence on the bottom row. Currently my O's are in columns 2 and 3 on the bottom row. Dropping a piece in column 1 fills the bottom row position, creating three consecutive O's (columns 1,2,3). This sets up a potential win via a horizontal threat (by later playing in column 0 or building diagonals) while not opening an immediate win for my opponent.