<human>: Condense the text into a few key points

I made a similar post on this not too long ago, but I could definitely still use some help. My best friend lost her grandfather and is currently grieving. I want to help her get through this process, but unfortunately, I'm in San Francisco whereas she's in Boston.

So far, I've been trying to do a daily check-in with her through Facebook, which is our main medium of contact in the first place. I've read up on a couple of things online on how to help a grieving person, but a lot of these options, such as giving hugs, helping with chores, and bringing them food isn't exactly applicable given how we're located. What are some things that I could do/ say given where I'm currently located, and perhaps what are some things that I shouldn't be doing? This is all very new to me. Traveling is unfortunately out of the question since I'm currently in school. I've been planning on making a phone call to talk to her, but I'm not too familiar with her schedule, and she just recently got a boyfriend that she's been trying to talk to regularly (who ironically, lives overseas).
<bot>: Best friend is in grieving, but on the opposite end of the country. What are some things I can do/ say to help her from where I'm located, and what are some things that I should definitely avoid?