Ключевые слова: acknowledgment, admiration, admiring, affection, applauding, appreciation, background, blessing, business, caring, commendation, compassion, copy space, courtesy, encouragement, envelope, esteem, friendliness, generosity, graciousness, grateful, gratified, gratitude, heartfelt, honor, honoring, indebted, kindness, kudos, letter, letters, lifestyles, obliged, politeness, praise, reciprocity, recognition, regard, respect, respectability, respectful, respecting, sincerity, support, thankful, thankfulness, thanking, thanks, thoughtfulness, warmth,