Lance Cpl. William Taylor, a cook with Headquarters and Headquarters Squadron, practices the speaker listener technique during a Prevention Relationship Enhancement Program class at the Base Chapel here, Feb. 7. During PREP, couples spend the day learning new communication techniques and ways to keep negativity out of their communication. - Lance Cpl. William Taylor, a cook with Headquarters and Headquarters Squadron, practices the speaker listener technique during a Prevention Relationship Enhancement Program class at the Base Chapel here, Feb. 7. During PREP, couples spend the day learning new communication techniques and ways to keep negativity out of their communication.