Sorry I am playing catch up with my correspondence.
Best ever Christmas was the one when I received my copy of Black Beauty (still have it after 65 years) with Mums apology that I could not have a horse as we had no room.
Just listen.
At the right time in conversation ask questions beginning with What, when, where, why and who
And if you listen long enough you will hear your friend answer their own question. Then just smile.
You can't do anything. Just be there and listen to fears, hopes and where necessary share a tear. A hug comes in handy too.
Be positive.
God bless you.