Hug
An individual passes one or both hands, or one or both arms around the body of another in multiple combinations. There may be a simultaneous grasping of the fur. Ventro-ventral contact is excluded. This is an affiliative contact that may be accompanied by lipsmack. It may be used to retain a partner.
Thierry, B., EL, B., Baker, S., Matsumura, S., Muroyama, Y., TG O, B., ... & Watanabe, K. (2000). The social repertoire of Sulawesi macaques. Primate Research, 16(3), 203-226.