Grasshoppers are often quite comically frustrating to catch – always being one leap ahead of your hands. That's if you can lay your eyes on them in the first place, as they tend to go quiet as you get within a couple of metres, and they're very well camouflaged. This one was rather docile though and made life easy, wandering around my decking before it happily climbed onto my fingers to be photographed. It did have the amusing habit of turning to face the sun, which meant that as I turned to try to light it for a good sideways photo, it turned in the opposite direction.

It's a bit hard to be sure, being no expert, but I reckon this is a Common field grasshopper. It seems there's a lot of variation in colour so you need to look at length of wings vs legs, hairiness under the thorax etc.