Should I Let My Dog Lick Me? You have just come home after a long day and commute from work. As soon as you open your front door, there is Sparky wagging his tail and jumping up to greet you. So, naturally, you put your stuff down and greet your dog. As you are greeting him, he licks your face to show he is happy you are home and loves you dearly. Sparky does this all the time and you love it. But you should be asking yourself should I let my dog lick my face?