For the entire duration of their conversation, Castor sits unmoving. The smile never left his face and he clapped his hands in anticipation. 
At first he felt he had to say something to ease their suspicion, but his patience to not immediately debate a questioning buyer and let them discuss it between themselves seemed to be paying off. 

The short woman had already left. That was a shame though.

And for the first time in the last five minutes, he acted friendly again toward the bear twins. 

"That's a fair question, girlies!" He winked. "We are still in Kindeance ain't it? In Kindeance the king himself guaranteed the safety of traders like me! Kha kha kha! Trust me, have you ever been a dealer for once? Ever thinking bout becoming one yourself?" 

He coughed, or laughed, nobody can really tell. His eyes scanned all four before leaning forward toward Loise and Athena

"I'll let you in on a little secret of me trade. Consider this a bonus? Ya?! A good merchant knows potential buyers when they see one. I call it--- intuition, you see! Been in this business for many years this me sense is sharp enough now. That way those pesky, desperate brigands, and heroes of righteous cause can be seen clearly as a day! A very useful sense indeed and dat way I can protect myself just fine!"