Lend me your left ear.

If you want to tell someone you love them, you should tell them through their left ear, new research suggests a study by psychologists at Sam Houston State University in Texas found that people are more likely to remember emotional words, such as ‘love’, if they hear them through their left ear. They also suggests that it sweet nothings are heard through the right ear, they are more likely to be forgotten.
The researchers say their findings can be explained by the fact that the left ear is controlled by the right side of brain, which in turn is responsible for processing of emotions. So if your endearments have been falling on deaf ears hitherto, it just may be that you’ve been getting on literally!