Start brushing at the ends and slowly work your way up to the roots.  You can apply a leave-in conditioner or dry conditioner before brushing to stop tangles from forming while brushing. You will temporarily stand upside down so that you can brush the underside of your hair at the back of your neck. Brush your hair forward over the crown of your head and down to the tips, toward the floor.  Move all along the back of your neck and up to the sides of your head, beside your ears. You can also move sections of hair to brush hard-to-reach layers. Brush for 3-5 minutes. Avoid getting dizzy by standing back up slowly so that your body has time to adjust. Again, brush for another 3-5 minutes, moving all around the top of your head.  Brush in slow, gentle strokes to avoid hair breakage and to stimulate the scalp. Part your hair to brush in different sections as needed. Brushing your hair with a natural boar bristle brush can be done up to three times per day, but doing it at least once daily is recommended.

TL;DR in Indonesian:
Belilah sisir bulu babi dengan bulu alami. Membungkuklah untuk membalikkan kepala. Sisir rambut dengan gerakan panjang dan lembut dimulai dari pangkal leher. Luruskan tubuh perlahan untuk berdiri tegak lagi. Ulangi menyisir rambut seperti sebelumnya, mulai dari akar rambut dan menyisir ke arah ujung rambut. Ulangi hingga tiga kali per hari.