An illustrative communication provider system determines that a first virtual location of a first avatar in a shared virtual space is proximate to a second virtual location of a second avatar in the shared virtual space. The first avatar represents a first user and the second avatar represents a second user located remotely from the first user. The communication provider system detects an availability status of the second user, and, based on the availability status of the second user and the determination that the first virtual location of the first avatar is proximate to the second virtual location of the second avatar, the communication provider system provides audio content for presentation to the second user. The audio content is representative of a spoken communication by the first user. Corresponding methods and systems are also disclosed.