An "appeasement gesture" refers to an action or offering made to try and make someone else happy, calm, or satisfied, usually when they are angry or upset. It is done in hopes of avoiding conflict or gaining their favor. Full definition
Dogs use appeasement gestures when they are feeling stressed, uncomfortable, or fearful. (thesprucepets.com)
If he leans away, averts his eyes, yawns, licks his lips, has a worried look, or shows other appeasement gestures, he's probably uncomfortable. (thesprucepets.com)
You may also praise and reward your dog with treats when you are poking and prodding your dog for his own good, but if he exhibits any kind of appeasement gestures or acts aggressive, it is better to back off instead of trying to apply force. (dogingtonpost.com)