Step 1: Braid
Regularly braid your hair. For those of you who don't know how to braid, read below.
Step 1: brush your hair thoroughly.
Step 2: part all of your hair into three parts.
Step 3: take your left part an cross it over the middle. Then, take your right piece and cross it over the middle. Your middle, which will now be on your left, cross to the middle once again. Continue these steps until you reach the end, then tie it off.
Step 2: Bun
Then, twist the braid into a bun by twirling it around you hand. Tie it off again, and you have a braid bun!