What about和How about究竟有什么区别?

what about
怎样
What about...
(征求意见,询问消息等)好不好?
...怎么样?
how about
怎么样
how about
What is your thought,feeling,or desire regarding:
…怎么样：关于…你的想法、感觉或期望是什么：
How about a cup of tea?How about that storm last night?
来一杯茶怎么样?昨天晚上的风暴是怎样的情况?
how about that【非正式用语】
Used rhetorically to express surprise or wonder at or approval for something.
修辞用法,表示对某事或物的惊奇、惊叹或同意

没有区别~

差别不大~~

实际上是没有区别的