I'm boring, I'd probably yell out "Just a minute!" and get dressed as quickly as I could.
This reminds me of a hilarious occurrence once while I was on vacation though. My parents had ordered something from a place in town, now this first part is unrelated but I think they ordered a burger of some sort and he wanted only ketchup or something. So the guy on the other end's like "Only ketchup huh.... So no bun? Just meat and ketchup?" Yes sir, because hamburgers can come without buns
anyway the delivery guy shows up to our door and I'm only in my undies. I don't know why I didn't prepare for this earlier but upon hearing the knock I end up running to the right, we didn't have one of those standard hotel rooms, it was kind of a loop where you'd walk in, and a door to the immediate left would lead to the bathroom but you could walk in front to the dining/living space, and from there it also went left. And then there was a set of doors leading to the bedroom, and in THAT room its left wall has a door leading to the same bathroom as the one you could see from the entrance. Anyway I run to my right towards the bedroom and apparently the delivery person wanted to check out our room a little since it was quite nice, you know we had two balconies with two different views so it was only natural they'd want to check it out a little. NEVER something that happened in the past but I guess they were just surprised we had such a nice room? Upon hearing them approach the bedroom I rush into the bathroom and lock both doors hoping they don't want to check that out also
They left without seeing me naked but they said they could almost definitely hear me and knew there was one person they weren't seeing because I was running and stomping around quite loudly
so they could probably assume what was going on........ good times