Essek was there with Caleb! He looked very much like this, though his shirt was a very light pastel pink and he's, you know, drow. He also was wearing ear cuffs/earrings that looked similar to this, except imagine it silver, looking more cherry blossom-y, and extending up to the point of his ears!
Overall, Essek would have chatted with anyone that he knew or sought him out, but more or less stayed close to Caleb the whole time. He did drink, though didn't get too excessive for safe teleporting reasons. :3