Ключевые слова: advertising, advice, alert, announce, announcement, attention, background, banner, business, business people, businessman, businesswoman, cartoon, caution, communication, danger, exclamation, flat design, illustration, importance, important, info, information, loud, loudspeaker, male character, megaphone, message, news, note, notice, notification, offer, people, please, poster, promotion, propaganda, salesman, scream, shout, sound, speak, speaker, speech, voice, warning, worker man, young adult,