How do you only bleach only the tips of your hair?

put your hair into a ponytail then pull out small strands one by one and apply bleach to their tips. Try not to play with your hair after you have applied bleach or move your head to much, as it is too easy for the bleach to spread to the rest of your hair this way. You have to be really careful in general if you want the bleach to only remain on your tips.