Cows which have some type of interaction with humans are always curious of what you are doing but most often, they think you have brought some feed for them to munch on! Every time I cross a field with cows in it while hunting, they will gather close to me, sometimes follow me and even try to get a sniff of me. If I am in full camouflage from head to toe, they are often curious as to what I might be, especially the young ones compared to the older ones. It is often hilarious at the antics that they will resort to in an attempt to determine if I am a good or bad thing!
Frank