Well, I do find it difficult sometimes to express my overwhelming affection towards all of you, especially in public places.

["Sometimes". Spengler usually plans on kissing his partners but then usually forgets or gets side tracked by other science stuff. His face heats up a little when Ray kisses him.]

But that is true, in addition to being able to study the traits of his dimension and its inhabitants.

[A beat.] How long do you think it will take Venkman to begin complaining after meeting us again? [And after kissing the living daylights out of both of them.]