I pretty much live in check shirts, they are just awesome. I tend to wear them like the guy down there. With the top couple buttons undone and sleeves rolled up to the elbows. Tucking in should be kept for smartly dressed times though. That’s the great thing about the check shirts, team them up with good jeans and shoes, tuck them in and you’ve got a smart casual thing going on. Just put them on loose over a tshirt and with shorts and you’re rocking a summer clothing masterpiece.