The Thri-Kreen considers Sahgrim's words, and looks with what would pass as a confused face at Syld when he speaks to it. It's gaze then passes to Sahgrim again.
"Perhaps you help can I. Trust not total you," It says, glancing at Syld, "but perhaps you help can I."
It absent-mindedly pulls down an antennae with one of it's forelimbs - which momentarily releases it's hold on the polearm - and resumes speaking when it is finished, maintaining it's firm grasp on the polearm throughout it's communication once it finishes cleaning itself.
"What bring... gift you? Have I gems, to you trade. Gifts, for." It lifts out a sack of gems with a back limb. From what you can see, there would appear to be a few thousand gold pieces worth of jewels in the bag.
The 'Kreen remains slightly tense, although you can tell that you have piqued it's curiousity. It is not offering you the bag of gems, but is holding it out for you to inspect it - you can tell this from how it is gripping the bag. It is searching each of your persons for something that might, perhaps, interest it, or prove to be useful in some manner.