Sans holds up his hands--well, one hand and one hand full of maybe food, maybe a lady's hat--in what he hopes is a disarming manner. Most everyone here is human, or at least has a way more physical body than him, which means most anyone here, if they really wanted to freak out at him, could be rather hazardous to his health.

"Yeah, you know how it is, sometimes you're all skin and bones, and sometimes you skip the skin."

Surely jokes will make everything better.