The technology disclosed herein may simulate physical interaction between users via their wearable computing devices. An example mechanism may involve receiving, by a first mobile computing device, an input of a pressure sensor that is configured to detect a magnitude of applied pressure associated with a first user; transmitting a signal to a second mobile computing device that corresponds to the magnitude of the applied pressure; receiving a signal from the second mobile computing device that corresponds to pressure sensor input for the second mobile computing device, wherein the pressure sensor input is associated with pressure associated with a second user; and causing a haptic actuator communicatively coupled to the first mobile computing device to generate a haptic output corresponding to the pressure associated with the second user, wherein the haptic actuator causes a body configured to extend or retract to alter stiffness to generate the haptic output.