Grapes intellectual

I don’t know how grapes understand that this is a nail that can be caught on. But the grape vine did it. Having covered a distance of a couple of feet, the grape vine wrapped itself around the nail. Now the grapes will be able to climb further onto the fence. Grapes have no eyes. How do grapes know where to grow in order to catch on to something? The nail is very small. It is necessary to accurately measure the distance to hit the nail. Grapes can do this. It seems to me that grapes have very great intelligence and life experience. What do you think?