Lovely can be used to descibe anything. 'we stayed in a lovely (comfortable / luxurious) hotel, it had lovely (picturesque / stunning / beautiful) views, the staff were lovely (friendly / helpful)'. It is not often used to describe the appearance of men, though it can be for women. It can be used to descibe a man's personality (caring, friendly, etc)

It can describe anything.

As" lovely" pertains to men or women, such adjectives are usually not welcomed by males. Even young boys, who could be recipients of such praise, might not look kindly.