My dog loves licking me. Arms, hands/finger (especially when I've just washed them and they aren't dry yet), scalp. He also will scratch the fake tile floor in

My dog loves licking me. Arms, hands/finger (especially when I've just washed them and they aren't dry yet), scalp. He also will scratch the fake tile floor in certain corner spaces like next to my front door. I think I read a while back that the scratching helps release their scent so it's like they're reclaiming their territory too. (this is after he's gone out and done his business, not him telling me he needs to go out)