Cheeky Cows

I stopped in an idyllic country lane to relax and have my flask of coffee.
All around were cows munching the grass and some laying down in the sun
Until I got out of the car
Then they all came meandering towards the fence to get a better look at me they came from all corners of their field till the whole herd were up against the fence giving me the once over......
I wonder why I was so interesting?