It's been a long time coming. My interpretation of the uber popular Bova knot. Full credit goes to Bova123 and her SA's who taught her this very useful tie. I'm sorry I couldn't find Bova's original instructions. It was taking more time in the search tool than to just write a new tut.... here goes...This knot can be done while you are wearing the scarf, but until you get used to doing it, it is sometimes easier to make the knot, then put the scarf over your head....
Fold your scarf in a triangle.
pass the tails across one another use one tail to tie on to the other tail. do not try to tie them together, just wrap one tail around the other and tie it on to the other tail.
The knot should have the little tail of itself pointing outward towards the larger portion of the scarf. If it points backward away from the scarf, then I don't think this lays quite right.
make the same tie on the other side with the other tail, so both ends of the ties are running along the scarf pointing in to the larger triangle portion...
Put over your head and you are done! It has some natural twist to it when done this way. You can tuck the little leftover tail ends under the main part of the scarf and now you don't have a huge ponytail of scarf ends hanging out the back of your neck...

Works all the way down to bandana size, though you will have to probably wear that one while tying this one.
