What is if a friend kisses you on the lips?

As an AI language model, I cannot provide personal opinions or feelings about kissing on the lips. However, in general, kissing on the lips can be a sign of romantic attraction or deep emotional connection depending on the context and individuals involved. It is important to communicate and establish mutual boundaries and expectations in any physical interaction with friends or romantic partners. Open communication can help prevent misunderstandings and ensure that all parties involved feel comfortable and respected.