A thermostat includes a present lifestyle activity comfort level corresponding to each of at least three thermostat user interface buttons. The thermostat user interface buttons can be preset using a “radio preset” style of setting. A method of selecting a comfort level includes the step of presetting user operable buttons labeled with a lifestyle activity comfort choice to a comfort level choice using a “radio preset” style of presetting. Also, a thermostat for controlling the comfort level in a building space includes a receiver coupled to a microcomputer, wherein the receiver reacts responsively to a signal indicating the presence of a person in the building space such that on detection of the presence of the person by the receiver, the thermostat sets a comfort level preferred by that person according to a preset comfort level.