Congeniality

For the duration, you neutralise disadvantage on all Charisma checks directed at one creature of your choice that isn’t hostile toward you. When the spell ends, the creatures attitude toward you depends on how you treated them during the preceding minute. A lingering effect of this cantrip is for the target to have a vaguely positive impression of the caster for the next 24 hours. Though the magic then wears off, depending on your actions, the impression might remain.

(this confers no game mechanic advantage, but is a role-playing consideration).