a person who is involved in a subject, issue, etc. and makes it easier for ordinary people to understand and have sympathy with it :
He is the human face of party politics.
a person who is involved in a subject, issue, etc. and makes it easier for ordinary people to understand and have sympathy with it :
He is the human face of party politics.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005