Threading requires the customer to hold and somewhat stretch the eyebrow while the beautician applies the thread to your eyebrows. Threading is best to have someone do it to you and not try it yourself.
Threading is quick and does not cost that much. You only need to thread once a month or so depending on your hair growth. In south Miami, I pay $14 and I give the girl a $6 tip. They know me now and I always get a good result.