They highlight the first-person singular and second-person singular dimension respectively, that are, Lucy and Tumnus. Given that there are only two speakers in the context of utterance, the deixis are used in a symbolic way. Although a third-person pronoun "they" is found in line 46, it is not non-deictic but anaphoric because the subject "people" already indicates the pronoun "they" without reference to the context of utterance. Person deixis is also expressed in terms of vocatives. In line 6 "Ed! Stop!", the vocative Ed is uttered in the initial of the sentence, it is used to get attention of the addresee (Edmund) in a symbolic way.
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1.2. Space Deixis.
Space deixis "concerns the encoding of spatial locations relative to the location of the participants in the speech event" (Levinson, 1983, p. 62) and both proximal and distal space deixis are identified. For proximal space deixis, they refer to places that close to the speaker or both the speaker and the addressee. In line 7 "This place is huge", the country home is encoded in the demonstrative "this" that is close to both the speaker (Peter) and the addressee (Lucy) symbolically. In line 7 " whatever we want here" and line 33 "What are you doing here", the country home and the world of Narnia are encoded in the deictic adverb of place "here" respectively. They are also symbolically located because both the speakers and addressees are in the pragmatically given area that is close to them. As for line 62, "Well, here", here is a gestural space deixis instead given that there is no clues for reference of the context without using any gestural pointing because the place referred is close only to the speaker.
For distal space deixis, in line 3 "if home's still there" and line 52 "there'll be a glorious fire", the place Britain and Tumnus's home are encoded in deictic adverb of place "there".