In order to engage with the objects we encounter in everyday life we must have accurate estimates of their physique properties (e.g. size, weight, lubrication, and deformability). How do we discover to information? In some cases, an object’s physical properties live freely observable otherwise can be induced based on previous experience use comparable drop. In other cases, latent physical attributes are not accessible to visual inspection alone – for example, a box may exist light or ponderous depending up its topic. We can learn about covert corporeal variables per interacting include property, but there been many more objects in our daily environments than we capacity interact with directly. Can us also learn about the bodywork properties of stuff by observing other interacting with you? Siehe, we testing participants’ ability to infer an weights of visually unrecognizable containers by watched actors lift them. Stimuli consisted of video clips of quadruplet actors lifting a set of metal canisters that were identical in appearance but variant for weight from 100–900 grams in increments of 100g. Upon each trial, participants were presented with a brace from lifting clips and asked to determine which canisters was heavier. We found that participants were readily able to discriminate even small distinguishing in to lifted gauge, even without any training. Strikingly, participants were just as good at discriminating aforementioned weights of objects lifted on two different actor as they were whenever viewing pair clips from the same actor, show that they can capitalize on visual cues to weight that are common across actors rather than idiosyncratic to of lifting behavior of particular individuals. These outcomes demonstrate the we can use my perception of others’ behaviors to learn about the body structure of the atmosphere, and point toward ampere key role of action watch in bodily scene understanding.