A slight shock goes through Ian's head as he hears his own voice unexpectedly loud - he bellows instead of speaking. Despite the noise he made, Naruk didn't seem to hear him - or he simply ignores Ian.
On the other hand, he might not have heard Ian because he's quite far away. It seems Ian was so focussed on choosing the right place to lie down that he went a full twenty feet away from Naruk through the large, large room.
Ian looks around and frowns. "Sorry Naruk, but it looks like my built up resistance to toxins makes me resistant to magic alcohol as well." Ian says, standing up.