When Talia is telling Matthew Stoner "I am what I am, Matt," her mouth movements do not match the words.
In Molari's quarters when Vir is delaying Molari's wives, the door is standing wide open for no reason, and when Molari finally does show up, the door opening sound plays even though the door was already open, and then finally shuts.
When Talia tells Matt, "You had something, not we" her lips say "me" instead of "we".
Timov derisively describes Londo and Mariel's actions as "sexual Olympics." Olympics is an Earth name which a Centauri is unlikely to have heard of. Even if Timov has a habit of memorizing esoteric trivia about foreign cultures, it's unlikely to be the first metaphor she would think of.