This is a very simple stitch pattern, and looks good for either guys or gals. A few years ago, a male friend wanted me to make a scarf for him, and this is the stitch pattern I chose. Very easy to remember too. (This sample was knit with wool, and is not blocked. The squares will look more crisp and clean once blocked.)
Cast on a multiple of 8.
Rows 1-5: *K4, P4*
Rows 6-10: *P4, K4*
Repeat these 10 rows for pattern.