When Deanna and Lwaxana are beamed out of their clothes and materialize naked, Deanna opens her mouth in surprise, but no sound is heard at first. Yet her surprised shout follows a second later, after she has closed her mouth.
In the opening gathering in Ten Forward, an Antican and a Selae are shown in the background, and they are not exhibiting any signs of hostility. It is highly unlikely that the two races would have resolved their numerous differences in the two years since Star Trek: The Next Generation: Lonely Among Us, when they refused to be on the same deck as each other, let alone the same room.
Reittan Grax makes a variety of pronunciation errors in the first scene when speaking with Picard and Data in Ten Forward; notably, he refers to his race as "we Betazeds" - the planet name is Betazed, but people FROM the planet are called Betazoids. He also pronounces Deanna Troi (pronounced like "Banana") incorrectly (pronounced like "sauna").
After Riker rescues Troi from a discussion, the Ferengi captain approaches Lwaxana, and she turns to face him and her earrings start rocking back and forth. The very next shot shows her earrings at rest.