(one's) ears are burning
One intuits that people were talking about them, despite not witnessing it. Are you two talking about me? My ears are burning.
ears are burning, one's
Be disconcerted by what one hears, especially when one is being talked about. For example, Were your ears burning? Jim was telling us about your exploits. Similarly, make one's ears burn means "to embarrass," as in Mom's stories about us as babies make my ears burn. These expressions allude to one's ears turning red from blushing.