It depends how you cast on: Watch where your 'tail' is when you've cast on. the right side is the side you start on first. Once you have done two rows, your tail should be on the same side as when you started. My tail is always on the left, because I knit the stitches onto the needle from a slip stitch, but will be on the right if you use a finger and thumb cast on. Anyway, it doesn't matter much, knitting is very forgiving and one row makes no difference.