It is more that we are lost in an inner vortex of feeling/perception which forms a kind of virtual and personal inner world. In Yogacara, this is called the seventh consciousness - mānas-vijñāna or the surface-level of mind: the superficiality of the mundane faculties of perception of which its counterparts are the previous six, but the actions derived from them all are rooted in the eighth consciousness, sometime called the storehouse consciousness. This latter consciousness is what gives shape and substance to the play of cause and effect.
When you say, 'does he pretend to communicate with other minds?' - Not quite, because he knows situationally that the feeling/perception of others is just an automative script. In many ways we are all reading from a conditioned script which Yogacara might call the alaya-consciousness where all the karmas are stored, or where all our predefined responses wait for the correct conditions to converge. We are all therefore already indulging in pretence.
In terms of social transactions and conversational dynamics, for an enlightened mind, there is a relearning of social interactions some of which never bother. They will prefer to stay on their own, resting in the company of whatever. It is the case that some people are quite adverse to the enlightenment experience; they don't like it at all and wish it had never happened. This happens for a few reasons but one of them is poor understanding.
For some, this relearning will involve the recognition of the ignorance of others, their reactive states of consciousnesses all with a view to blending-in. This blending-in might be because there remains a body that needs taking care of, so one might go to work. The other reason for learning to blend-in is via compassion. He sees the extent of suffering caused by investing time and energy into mere feeling-perception-based endeavours. Blending in means re-playing the roles that have now been relinquished, but re-playing them with greater awareness or situational wisdom.
So it is more a relearning to operate at a different level, but when I say level, I don't necessarily refer to any sort of hierarchical structure, but more the ordinariness of clear, bright and unhindered perception. There isn't a going North, East, South or West to realize that. It is a here-and-now occurrence soiled by the obscuration of feeling-perception or in yogacara terms, mānas-vijñāna.