(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.

someone's ears are burning

someone is subconsciously aware of being talked about, especially in their absence.

The superstition that your ears tingle when you are being talked about is recorded from the mid 16th century. Originally it was the left ear only that was supposed to do so.

his, her, etc. ˈears are burning

a person thinks or knows that other people have been talking about them: Jenny’s ears must have been burning last night: we talked about her for hours.