A play set, comprising: a base unit in the form of a toy vehicle, toy setting or toy building and one or more characters in the form of a figurine or statuette configured to couple with the base unit such that, when coupled, the base unit and the characters form a toy for interaction with a child; the base unit comprising one or more first connectors that each include a plurality of electrical contacts and associated identification circuitry for identifying the corresponding first connector; each character comprising a second connector configured to engage a first connector of the base unit and electrically couple circuitry of the character to the plurality of electrical contacts of an engaged first connector, wherein the first and second connectors are shaped such that the character has multiple different orientations relative to the base unit in which the character is electrically and mechanically connectable to the base unit, and wherein the circuitry of the character comprises a memory and a processor, wherein the memory is configured to store a plurality of base unit and/or character responses, each response corresponding to an identifier identifying a first connector of the base unit, and wherein the processor of the character is configured to: identify the engaged first connector by obtaining an identifier from the associated identification circuitry of the engaged first connector; and generate a response from the plurality of responses stored in the memory which corresponds to the obtained identifier. a base unit in the form of a toy vehicle, toy setting or toy building and one or more characters in the form of a figurine or statuette configured to couple with the base unit such that, when coupled, the base unit and the characters form a toy for interaction with a child; the base unit comprising one or more first connectors that each include a plurality of electrical contacts and associated identification circuitry for identifying the corresponding first connector; each character comprising a second connector configured to engage a first connector of the base unit and electrically couple circuitry of the character to the plurality of electrical contacts of an engaged first connector, wherein the first and second connectors are shaped such that the character has multiple different orientations relative to the base unit in which the character is electrically and mechanically connectable to the base unit, and wherein the circuitry of the character comprises a memory and a processor, wherein the memory is configured to store a plurality of base unit and/or character responses, each response corresponding to an identifier identifying a first connector of the base unit, and wherein the processor of the character is configured to: identify the engaged first connector by obtaining an identifier from the associated identification circuitry of the engaged first connector; and generate a response from the plurality of responses stored in the memory which corresponds to the obtained identifier. identify the engaged first connector by obtaining an identifier from the associated identification circuitry of the engaged first connector; and generate a response from the plurality of responses stored in the memory which corresponds to the obtained identifier.