Staying with external observation and one character's thoughts helps. [fact]
The limited omniscient viewpoint is one in which the author may move with some, but not all, of the omniscient author's freedom. The most commonly used form of the limited omniscient point of view is one in which the author can see events objectively and also has access to the mind of one character, but not to the minds of the others, nor to any explicit powers of judgment. Limited omniscience is particularly useful for the short story because it very quickly establishes the point-of-view character or means of perception. The short story is so compressed a form that there is rarely time or space to develop more than one consciousness. Staying with external observation and one character's thoughts helps control the focus and avoid awkward point-of-view shifts. A further advantage of limited omniscience is that it mimics our individual experience of life, that is, our own inability to penetrate the minds and motivations of others, which can lead to the kinds of conflicts or struggles for connection that inspire much fiction.
Janet Burroway, Writing Fiction, Tenth Edit…, loc. 511