He is nice. 改成特殊疑问句应当是 What is he like?What is he? 他是干什么工作的?What is he like? 他这人怎么样?问外表长相、性格特点方面。How is he? 他身体怎么样?
Look at that new student,what is he like?看那位新学生,他看起来怎么样?
What is he like?