"all smiles" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions adjectivales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "adj",
  "pos_title": "Locution adjectivale",
  "senses": [
    {
      "examples": [
        {
          "ref": "Marcus Aurelius, Meditations, traduction anglaise de Maxwell Staniforth, 1964",
          "text": "All that men set their hearts on in this life is vanity, corruption, and trash; men are like scuffling puppies, or quarrelsome children who are all smiles one moment and in tears the next. — Toutes les choses qu'on recherche si ardemment dans la vie sont bien vides, bien corrompues, bien mesquines, roquets qui se mordent, enfants qui se querellent sans cesse, riant un instant pour pleurer l'instant d'après."
        }
      ],
      "glosses": [
        "Tout sourire, riant."
      ],
      "id": "fr-all_smiles-en-adj-XmHiWNmk"
    }
  ],
  "word": "all smiles"
}

{
  "categories": [
    "Locutions adjectivales en anglais",
    "anglais"
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "adj",
  "pos_title": "Locution adjectivale",
  "senses": [
    {
      "examples": [
        {
          "ref": "Marcus Aurelius, Meditations, traduction anglaise de Maxwell Staniforth, 1964",
          "text": "All that men set their hearts on in this life is vanity, corruption, and trash; men are like scuffling puppies, or quarrelsome children who are all smiles one moment and in tears the next. — Toutes les choses qu'on recherche si ardemment dans la vie sont bien vides, bien corrompues, bien mesquines, roquets qui se mordent, enfants qui se querellent sans cesse, riant un instant pour pleurer l'instant d'après."
        }
      ],
      "glosses": [
        "Tout sourire, riant."
      ]
    }
  ],
  "word": "all smiles"
}