I have had a little experience with this over the years with a handful of students. My advice would be to take your cues from the student. Basics such as the pronouns they prefer to use, learning and reinforcing referring to them by their new name (if they are changing their name). Try to be sensitive to how they are functioning with in the group with out signaling them out as being different (normalize what they are going through, do not focus on it). If they are taking hormones be aware of how that could effect their mood and well being, especially as they adapt to them. Know that their situation is ever-changing, and what was comfortable for them back in the fall may be very different in May... or next year.As far as a resume and headshots, do whatever you can to help portray and support the individual they are trying to transition into. There should be no need to write anything specific on a resume. Often times use of makeup and a different hairstyle can really help someone who is transitioning visualize what they feel inside. Do what you can to develop your relationship with that student so that they feel comfortable talking to you and coming to you should any concerns develop. When you find yourself in doubt on how to handle a situation, ask the student privately what they prefer. Do not hesitate to enlist your school consolers if you need someone to talk to about how to handle something.