Strange's recklessness may entirely be in a different half, but both sides share his bullheaded stubbornness. He's storming past Lambert, intent on just getting away from his dipshit other half so he can study this magic more, when the voice and a raised hand tells him that ah. This must be the other half of Lambert.

He stops his trek back to the bathhouse to walk over to Lambert. He gives this half a little nod, even though Strange is frowning slightly.

"My other half is acting up. I'm trying to find somewhere quiet so I can study the magic behind this split."

Though hmm. Lambert is right here. And he is also split. Maybe he can just hang out with Lambert and analyze him via third eye for a bit.