In the same way that tween girls start wearing makeup and paying more attention to fashion much like women do, tween boys mimic their adult counterparts. The tween years are a peculiar time for boys; they're beginning to discover their talents that will set them apart from the pack. Headed toward manhood, tweens start to assert their independence and want their bedrooms to reflect that.
Although they're still active and playful with their friends, tween boys don't want to be perceived as childish. Consider this when decorating your tween son's bedroom.