What is recommended during the process of moving through a receiving line?

During the process of moving through a receiving line, engaging in a cordial handshake is the recommended practice. This action is not only a polite gesture but also serves as a way to acknowledge each individual in the line. A handshake conveys respect and formality, which are important in the context of a receiving line.

Engaging in lengthy discussions is typically not appropriate, as receiving lines are intended for brief acknowledgments rather than extended conversations. While offering compliments can enhance the atmosphere, it's not a required component of the interaction. Discussing business matters would also be unsuitable, as such topics generally detract from the formality of the occasion and can disrupt the flow of the receiving line. Therefore, a cordial handshake is the most fitting and respectful approach to take in this context.