Not looking human might make it a little harder, but as long as you speak English, don’t do anything impolite (like turning the guests into paperclips) come in a form that fits in the door and are big enough to see with the human eye (how big are you Clippy?), you should be fine.
Informal social gathering, and yes, open to everyone interested.
Really? What if you don’t look human? What if you don’t give identification? I think you need to qualify your statement.
Not looking human might make it a little harder, but as long as you speak English, don’t do anything impolite (like turning the guests into paperclips) come in a form that fits in the door and are big enough to see with the human eye (how big are you Clippy?), you should be fine.