Decreased heart rate, decreased respiratory rate, chills sounds like the answer but i could be wrong
Being able to know the medical terminology allows you to understand other people that you’re working with. It also allows you to do your job better since you’re very knowledgeable on your job.
Gabriel would then need to ask to see their ID's. If he suspects they are using false ID's then he would need to confiscate them and call the police. If the two minors have no ID then he needs to have them escorted off the property or tell them to leave.