I don't like shopping with my mum because she wants me to wear weird clothes. How about you?

how 是疑问副词，表示"如何、怎样"，常用于询问方式或情况。 about 是介词，在这里表示"关于、对于"，用于引出询问的对象。 how about you 是固定搭配，表示"你呢？"，用于询问对方的意见或情况。