Noah flinched pretty hard from Randall's grumpy scowl, which made him freeze for a brief moment. Indeed being swept away by emotions, he didn't realize that holding a royal crown prince's hand just like in front of Randall, despite being in the position of a lowly man-servant can also be highly offensive to Xanthus until Randall pointed it out in that stern manner.
Yet still, as he slowly unleashed his hold from Xanthus's big, warm hands, he couldn't hide his perplexed reaction while addressing him, "P-Pardon me, Your Grace. I…indeed forgot my position for a second. I didn't mean to put you in a difficult state…"
However, just from the sound of his voice, Xanthus realized that Randall had hurt him with his words which somehow irked him deep inside.