There is a shift in their conversation, subtle as Hemla's name is spoken, but not lasting as the young sali goes on. A few seconds given to consider, before the young sali hears:

'Fine, I will see them. Tell them to bring our own, I will lead them. You, look for others, keep your head. Call if you need help.'

The uneasiness doesn't shift for Wei Wuxian and Yondu, and instead, they feel their bodies - their attention - being pulled in the direction the young sali had been taken them to. A feeling that comes with a prickling to their skin that they should continue that way - with the older sali.