While massaging her friend’s foot, Sri Siti Marni gave her instructions with a soft voice. The scars on her upper lip, where she once had stitches, gave her voice a nasal tinge. “Rotate the ankle to the right and left,” instructed the 23-year-old girl.

Both of her hands began to move, pulling each of her friend’s toes and exerting mild pressure on the soles with her thumbs. Her two friends imitated her movements.