What do farmers do when they are not watching their cattle?

Cattle don't need to be watched, unlike sheep and chickens do. Cattle can look after themselves enough that the farmer doesn't need to watch them all that often. Other things on the farm or ranch can be attended to, like haying, fixing fence, doing repairs on machinery, etc.

The only "Cattle" Farmers are called Dairy Farmers and they are either milking, feeding, breeding, or doctoring the Dairy Cattle, usually when you speak of cattle it is beef cattle.