Ozomahtli, the monkey, is read as the entertainer among the twenty signs, and the tonalamatl's readers followed that character directly: Sahagun's informants gave those born under it a pleasing, sociable fortune, a gift for song, dance and craft, and the easy friendship of strangers, one of the count's most consistently favourable signs with little of the conditional warning attached to several of its neighbours. A day of skill in the hands and lightness of spirit by the fuller reading, Ozomahtli's association with entertainment and craft made it a sign families might specifically hope a talented child would be born under, its favourable augury requiring less of the discipline other gifted signs, such as Xochitl the flower, explicitly demanded to keep the gift from souring into indulgence.
The monkey's natural playfulness, well attested across Mesoamerican animal symbolism generally, gave Nahua thought a ready image for exactly the sociable, entertaining character the sign's readers described, one of several cases in the tonalpohualli where an animal's directly observable behaviour, rather than any deeper mythological association, supplied the bulk of a day sign's meaning. The strangers' friendship the readers promised a monkey day's child fit a wider Mexica appreciation for the travelling performer and craftsman, figures welcomed at feasts and markets across the valley, so Ozomahtli's favourable augury reflected a genuinely valued social role rather than only an abstract personality trait.