Where there are a number of meters stored together i.e. in an apartment block, the meters should be clearly labelled with the apartment number. If not, or you're not sure which meter is yours you can complete a quick test.
Turn off all gas/electricity appliances (including pilot lights) and take meter readings of the meters (you may want to take photographs). Turn back on the appliances in one of the properties, wait ten minutes and take a second meter reading. Your meter should be the one that has increased in usage.