Instructions:

Articulator: Lower lip

Point of Articulation: Upper lip

Manner of Articulation: Fricative: The articulator makes a narrow constriction against the point of articulation, so when the airflow goes through the oral passage, audible frication noise is created.

Voice: voiceless – Vocal folds are apart and are not vibrating.

Occurrence:
Ainu, Angor, Bengali (Eastern dialects), Ewe, German, Italian (Tuscan), Itelmen, Japanese, Kaingang, Kwama, Mao, Maori, Odoodee, Spanish (Andalusian), Tahitian, Turkmen.
(Source: https://en.wikipedia.org/wiki/Voiceless_bilabial_fricative#Occurrence)