一、各自有特別含義：
1、what about表示做什麼事情怎麼樣。含義後面偏重於接什麼事，(用於引出與之前內容相關的新的話題或觀點)
例句：
I like English ,chinese and math, what about you?
我喜歡英語，語文和數學，你喜歡什麼呢？
2、how about表示怎麼樣或怎樣做某件事。含義後面偏重於怎麼做的方式
例句：
I go to school by bus,how about you?
我乘坐公共汽車去上學，你怎麼去呢？
二、在以下場合基本相同：What about … 和 how about … 是英語口語中常用的兩個省略句型，它們的意思和用法基本相同，常常用在以下場合。
1、向對方提出建議或請求。
例如：
How about some eggs?來些雞蛋怎麼樣？
How about going out for a walk?
出去散散步好嗎？
What about playing soccer?
去踢足球怎麼樣？
What about another cake?
再吃塊蛋糕好嗎？
How about a cup of coffee?
來杯咖啡怎麼樣？
2、徵詢對方的看法或意見。
例如：
What about the English book?(你認為)這本英語書怎麼樣？
What about her playing the violin?
（你認為）她的小提琴拉的怎麼樣？
以下是一些經典例句：
How about going shopping and seeing a show in London?
去倫敦購物再看場演出怎麼樣？
How about your uncle now? You can』t leave him by himself.
你叔叔近來身體好嗎？你們不能單獨讓他生活。
Are your products and services competitive? How about marketing?
你們的產品和服務有競爭力嗎？營銷又怎麼樣呢？
'How about having a phone out here?' — 'Not likely!'
「在這外面裝個電話怎麼樣？」——「沒門兒！」
3、寒暄時用來承接上下文。
I am from Beijing .What about you?
我來自北京，你呢？
I like english ,chinese and math, what about you?
我喜歡英語，語文和數學，你喜歡什麼呢？
以上兩個例子中what about和 how about是不能互換的。
about後接名詞（短語）、代詞或動名詞作賓語。
What about my feelings?
誰關心我的感受？
What about my copier? Can you get it going again?
我的複印機怎麼樣了？你能把它修好嗎？
What about you? Would you like to come and live in Paris and work for me?
你呢？願意到巴黎生活並且為我工作嗎？
You are all going. What about me?
你們都去，我呢？
Now what about that shopping list? I've got to get going.
那張購物清單呢？我得出發了。
What about Sally? You've missed her out.
薩莉呢？你把她給漏掉了。
What about going out with me tomorrow?
明天和我一起出去怎麼樣？
What about getting new ones — Are you so tight you won't even spend three roubles?
買些新的怎樣——你就小氣到連3個盧布也不肯掏嗎？
How about you having a try?
請君一試，何如？
《漢英大詞典》
Well, I enjoyed that. How about you two?
嗯，我覺得那很棒。你們倆呢？
You want Jeannie to make the appointment for you? How about the end of next week?
你想讓珍妮幫你預約嗎？下周末怎麼樣？
'Something to drink?' — 'No, thanks,' said Michael. He glanced at Wilfred. '
How about you?'
「要喝點什麼嗎？」—「不了，謝謝，」邁克爾說。他看了一眼威爾弗雷德。「你呢？」
How about a nice sing-along around the piano?
圍在鋼琴邊來個合唱怎麼樣？
