Being drunk as he is he doesn't notice her slip in the pill.
"Thanks for the drink," he says, taking it and downing it in one gulp. He looks at the glass afterwards.
"I just hope that I can leave this place soon. You know, outside of work you guys are pretty cool. Maybe we can work together on some-" he starts, but falls asleep before he can finish. From the blinking light on his left shoulder under the collar you can tell he's being tracked, most likely by Jim.