Providing you with red-flag cues that another person may be ‘creepy’ is a function of fear, one of the four core emotions. It is designed to alert you to the fact that you may be in danger, providing you with information to process as you consider whether or not you really want to get to know the individual better or choose to back away—perhaps sooner than later. Some behaviors seem to align with giving off an impression of ‘creepiness’ although your brain may try to alert you without your having directly witnessed overt negative behaviors. Poor hygiene can be a red flag; the person lacking good self-care or seeming uncaring about the impression they make on others. Then there is getting a dead-pan stare or not being looked at all. Inappropriate touching is another. Unpredictability can be another. One moment they are cheerful and pleasant and the next they are moody and silent. One minute they are all over you and the next you are completely ignored as if you have ceased to exist. One second you are chatting and the next they are phubbing you; checking out of the conversation in favor of checking in with their cell phone, just in case they might have a call.