Yes please

You suppose you are kind of thirsty. "Oh, thank you", you say, flashing Red a polite smile. "Yes please. Do you have any soft drinks?"

Red glances over his shoulder at a small mini-fridge in the corner. He peers at it for a long moment, but doesn't walk up to check it. "No. Sorry, but I can get you some water", he finally says.

"I'll have some water then", you say, not in the mood for coffee.

"Great!", he exclaims, standing up to fetch you some water. He leaves the room, giving you a brief moment to look around. There is a table in the middle of the room, as well as some electrical equipment placed against the wall. You see what looks like an old projector, as well as some large lights. You can't exactly identify all of it, but you suppose it's probably stage equipment.

He returns a brief moment later, handing you a cup of water. The water is clear, but the container looks dirty; his fingers have left greasy stains on the glass. You mumble your thanks while he once again moves to the couch across from you. He watches you intently as you observe the glass, so you feel pressured to take a sip. The water tastes a little bitter, but nothing too out of the ordinary... you think.

He then fetches a remote control from between a crack in the seating and pushes a button on it. You hear a buzzing and look to your left to see a white screen drop down from the ceiling. You watch with interest, sipping your drink.

"When you've emptied your glass, I want you to walk across that screen.", he tells you. He points from one side of the screen to the other.

"Oh. Okay.", you say, hastily taking another sip from your water. That should be easy enough. You wonder why he wants you to do that, but you assume it is to see how you compose yourself.