Why do people tilt their heads to the right when kissing?

Key Points

• The research aims to explore the reasons and implications behind the rightward head tilt when couples kiss.
• Observed couples kissing in public spaces such as airports, train stations, beaches, and parks in America, Germany, and Turkey.
• Reviewed existing literature and data on kissing behaviors, as well as related interactions like hugging and holding hands.
• Analyzed new observational and experimental data within the frameworks of laterality studies and evolutionary psychology.
• Identified a consistent bias for head tilting to the right among kissing couples.
• Established that the rightward tilt is not associated with handedness as previously thought.
• Highlighted the need for further theoretical frameworks to explain this phenomenon.