We have no meanings for "showing a face" in our records yet.
1 He'd taken his shell-helmet off, showing a face glinting with sweat.
2 Presently the minister turned round, showing a face that made no pretence of calm.
3 In a moment or two her mother came out, showing a face of tearful misery.
4 She looked up at him, showing a face in which resentment, outrage, and wistfulness were mirrored.
5 She slowly raised her veil, showing a face very still now, with eyes as steady as David's.
6 A twig crackled and she looked round, showing a face drawn with weariness and eyes large with terror.
7 The moon poured a mass of molten silver directly upon him, showing a face of unusual strength and power, set now with stern resolution.
8 "Oh, you have helped me now," and threw up her veil, showing a face where smiles were already triumphant.
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