[header] How to flirt over the phone [title] Encourage them to talk about themselves. [step] People rarely get opportunities where they can be unapologetic about how they talk about themselves. Giving them the floor to talk about themselves is a way to learn more about them and allows you to be more interesting by being interested in them. 
[substeps] Ask open ended questions that delve into the person's past and present. Find out their career ambitions, their hobbies, and what they enjoy about life.