You could get a set of bells to hang on the door for your pup to ring, or you could teach them to speak or paw at the door. This way, you will be able to hear them ask to go outside even if you are in a different room. To start teaching these signals, you still need to begin by paying attention to the small signs that they need to go. When it’s time to go, get up and lead them to the door. Then, open the door just a crack–enough for them to smell the outside, but not enough to stick their whole head out. Wait for them to make eye contact with you, then get them excited to go out. Ask something along the lines of “You need to go potty?” then wait. In just a few seconds, your dog should get impatient and vocalize (either by whining or barking) or paw at the door to be let out. Say “yes” or “okay” and let them out as soon as they do. Bells are an excellent way for your dog to signal that it’s time to go outside since they are a distinct sound that you won’t mistake for anything else and are loud enough for you to hear from almost anywhere in the house. Show the bells to your dog, and reward them for any interest or interaction they have with them–sniffing, nosing, pawing at them, etc. With a few weeks of consistency, your pup will start ringing them by themselves when they need to go.