Priscilla, being proficient in Prime, aka the Sphere that allowed for the detection of supernatural powers (just not specific effects unless they're Blood or Angelic Magic), would detect Lucas even though he wasn't a Mage. She would then say to Damien.

"Hold up, there's a lost boy who might need some guidance," before walking over to where Lucas was, smiling brightly. "Hello there. Are you looking for someone?" Using her ability to use Forces to control sound and direct it to Lucas' ear, she would whisper without anyone else hearing her.

"If you're looking for other people with powers, I'm here. I'm also meeting a young, actually normal man. Why don't you come eat with us?" Priscilla had to rely on the fact that she was telling the truth to overcome any instinctive mistrust. Either way, she liked the fact that she had Forces.

[@Wraithblade6][@Metronome]