Locutus stands very still, watching Helen for several moments of silence. It's a length of time that would be awkward or uncomfortable for most humans. But to the Borg, it's just an amount of time it takes to consider Helen and the words she said and to come up with a response that is outside of the token Borg answers. The latter of which is easier said than done to a drone. Even a drone who had been given a name and individual thought in order to communicate with humanity before they were inevitably assimilated.
Inside, Jean-Luc heard every word. He understood that she was speaking to him and not to Locutus. He screamed and railed and lashed out angrily even though Locutus was cool and collected on the outside.
Locutus deduced that because he couldn't yet reach some areas of his mind, that this human didn't think that he knew enough about one Jean-Luc Picard. And so he began to rattle off information to prove her wrong. Each piece of information is spoken as if reading out a file. "Jean-Luc Picard, designation human male. Born in Earth year 2305. Lebarre, France. One of two belonging to Maurice and Yvette Picard. Attended Starfleet Academy in Earth year 2323 through Earth year 2327. Starfleet serial number SP 937-215. Federation security clearance Epsilon 793. Commanding officer, USS Stargazer NCC-2893 in Earth year 2333 through Earth year 2355. Commanding officer, USS Enterprise NCC-1701 D and E in Earth year 2364 through current Earth year. Current rank: Captain."
He isn't done. "Present at Battle of Maxia against Ferengi in Earth year 2355: Victorious. Captured and assimilated by Borg in Earth year 2366. Present at Battle of Wolf 359 against Federation: Victorious. Prevents Klingon Civil War in Earth year 2367. Captured and tortured by Cardassian Empire in Earth year 2369. Present at Battle of Sector 001 against Borg: Victorious. Master of diplomacy. Has made first contact with over thirty alien species."
He pauses at that, head tilting. "He was a logical choice as intermediary between the Borg and the Human race. Respected. Our Queen chose him. Had he cooperated, he could have been her equal."