I need some help to support my friend after loss

[2ducks2ducklings]

My friend, one of my best friends who I have know for about 29 years, lost her mom in the early hours of yesterday morning. Her mom had health problems for many years but there were absolutely no signs that this was about to happen. So the whole family is in shock.
My friend and I are socially awkward to say the least. Neither of us are huggers, I actually patted her on the head when I first saw her yesterday (it did make her smile may I add) but you can see the level of awkwardness I'm dealing with. She would have patted me on the head if I were in a similar situation. She has others around her who will hug her if she will allow them to and I feel it would feel too forced if I were to do so. So my question is how the hell to I help her through this nightmare she can't wake up from? How do you know if the bereaved want to talk about their loved one or need their mind taking off it all for a few minutes? Do I try and cheer her up or do I just sit with her while she cries and hopes she knows my heart is breaking for her and I'm here for her even though I don't hug her or hold her hand through it?
I want to help but, although I thought the world of her mom, we weren't particularly close. Therefore I don't feel it appropriate to intrude at their house while the rest of the family are there. But at the same time don't want them to get the impression that I don't care if I try to leave them be.