.. How to get the menu

The Oppenbot just stands there. Stupid thing.

Maybe you could contact him remotely.

Like, using the intercom

In the same room with your friends. Room number five.

Cletus is in the room one. Call from room number one and speak to your assistant.

Now, leave the corridor by entering the pie vending machine room first. Then you get to the reception without facing Oppenbot. Speak to the receptionist dressed as Rufus.