I lost my mother unexpectedly when I was about the same age. I had to fly back to my home state for the arrangements while most of my close friends were in a different state. They arranged to send flowers and a card since they couldn't be there in person. It was such a surprise and it was so thoughtful- maybe you can do something like that while you are away.

Unfortunately, I have a lot of experience with death of close ones and I found (or felt) that a lot of people my age haven't shared that experience so they avoid directly approaching the subject. I always appreciated when my friends talked to me like they would have addressed me about any other unexpected event. I appreciated directed questions about how I was feeling, if I was eating, how I was functioning at work, at home, resuming a schedule, what I was feeling, etc instead of just saying "im here for you if you ever need anything." If I know someone is okay talking with me about the death and has shown it, then I will be more likely to go to them in the future when i am struggling or need help processing. There was nothing more irritating to me than when I felt like I had to reassure my close friends that "it was okay" because they got so uncomfortable or silent when I started answering honestly how I was doing after they asked. I really appreciated when my good friends talked to me as they would about other unexpected events in my life.