Ключевые слова: alone, anxiety, anxious, betrayal, bite nails, biting, biting nail, business, businessman, caucasian, challenge, confused, depress, depressed, depression, disorder, expression, fear, frighten, gray background, guy, hands, indoor, isolated, male, man, manager, nail, nervous, nervousness, pain, panic, people, phobia, portrait, problem, sad, scared, shock, shy, stress, stressed, terrified, thinking, tired, unsure, vexed, worker, worried, worry,