Although I wear very comfortable and thin clothes because it's so ****ing hot in Philippines. And my tees are always statement shirts. I dislike graphic shirts. And I love shorts.
It really depends on my mood or where I am going to (i.e. a party, uni). Right now as my casual I'm swagger jacking RiRi's style a bit with the Denim jackets, jeans and red lipstick.
I'd probably wear those shorts... If not for some personal reasons. Kids at my school pretty much expect it. But on that guy specifically, they do not look too good.