You’ve learned how to subtly mask your spell, as well as get a soundbite from your subject:

• You learn the subtle spell Metamagic option. You can use only one Metamagic option on a spell when you cast it, unless the option says otherwise. You use "Vox Populi" points to use this Metamagic option instead of sorcery points.
• You can use "Vox Populi" points to go "Off The Record", gaining proficiency in any Intelligence or Charisma skill for 1 minute. If you already have proficiency in that skill, gain expertise instead. If you already have expertise in that skill, roll an additional d20 and take the higher roll.
• You gain a number of "Vox Populi" points equal to your your proficiency modifier. You regain all spent "Vox Populi" points when you finish a long rest.