He is a shallow thinker whose opinions aren't worth much.

他看问题很浅薄, 他的意见没有多大价值。

Conceit comes from shallowness;arrogance is due to ignorance.

骄傲来自浅薄,狂妄出于无知。

The play was nothing but froth.

这出戏只不过是浅薄的表演。

For example, once a girl found I like nictation, she said because I through that way to attractive others eyesight and show my beauty, actually my behaviour is empty-headed.

比如上大学的时候有是喜欢眨眼睛，以此来显示自己长得不错，觉得自己很了不起的样子，其实很浅薄。其实只是因为戴着隐形眼镜，眼睛干，不由自主的就眨眼睛了。