My friend Fred does this well. During the significant losses in my life, Fred shows up. He gives a great hug and then settles in for the sit. He tends to come early and stay late. Once I had to let him know it was okay to go home, because we needed to get to bed. He has few words, but his presence is always comforting.
I do not know what my next loss will be, but I know Fred will be there to sit with me in those early days of sadness. That gives me great comfort.