One thing that has stood out to me since the game's release is that Halsin does not have any point and click voice lines like every other companion. (Unless my game is bugged).
I know some people meme about the voice lines of Tav being repetitive: "These boots have seen everything, Is that blood? ...No, nevermind, etc." However, I love to hear the characters speaking whilst they navigate the map.
It honestly irks me enough that I usually forego having Halsin in my party because he has no point and click dialogue. It seems a rather strange omission, as Jaheira, Minsc, and Minthara all have a wide variety of cool point and click lines.
I would love to see these eventually added for Halsin.