问长像:
What's he like? = What does he look like?
问性格:
What is he like as a person? = What's his character like? = What kind of a man is he? = What about his personality? What's it like?
问职业:
What does he do ( for a living)? = What's his vocation/profession?
一般不能用 How
what is he like? 问性格
what does he look like? 问长相
How is his personality/characteristics like?