+150

Trembling with anticipation

Anonymous 8 years ago in General Suggestions and Ideas • updated 7 years ago • 1

Test subjects could start to tremble with growing anticipation and upon seeing preferred actions/tools about to be used on them.

E.g. when they are into sounding and a tool is about to be inserted into them.

Vote

This is actually really good as it can be used to tell what a subject actually likes.