Be pleasant, upbeat but don't over-kill to the point you are acting weird. Be sensitive to the fact she's just lost a family member.

Number one thing here is to stay away from talking about yourself and/or the relationship. Your part is to listen to her talk about whatever.

Do not get sucked into any R talks or arguments. She will probably be tired, maybe irritable. Stay in control of yourself.

It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!