Praying for your loved ones - Paul sets a good example of this. Praying for family and friends, bringing their needs to God. Sometimes you don't know just how much they may be going through. You don't know if they're struggling to pray themselves. Your prayers for them might just be what is holding and keeping them up.
I also like the New Living Translation,
May the Lord bless you and protect you.
May the Lord smile on you and be gracious to you.
May the Lord show you His favor and give you His peace.