"I've enchanted this bottle to give you a nice, gentle trip," Eliot said, holding the bottle aloft. "All good feelings and happy colors. And I assure you, I know my hallucinogens."

He started mixing the drink with a great deal of showmanship -- while also ensuring that everything going into the glass happened well within Seivarden's view. There would be no roofying at this party if he could help it, and no suspicions thereof, either.

(And if doing so allowed her to see that no bare fingers touched any part of the glass that her mouth would also touch, that was non-deliberate on his part, but hopefully a perk for her sensibilities.)