What about/ how about doing sth

这个是表达“做什么事怎么样呢?”之意,主要是用来提出建议,征得赞同.
Ex：what about/how about having sth.to eat (吃点东西好吗?)
what about/how about seeing a film （去看电影好吗?）
PS:what about/how about + 名词.
Ex：what about/how about my suggestion (我的建议怎样呢?)
what about/how about this photo （这张照片怎么样?）
I hope my answer will be useful for U .