Obligatory Lick
The tongue flick you do to make it look like you're doing the whole thing, but it’s just a quick peck and a quick exit.
He did the obligatory lick and left. I had to take a bite of my sandwich to forget about it.
She gave me the obligatory lick and said it was a full on face job. I had to ask for a side of fries.
He did the obligatory lick and said he was done. I had to go back for seconds.