Visiting a Shiva Home – Not A Strict Family

Hi All,

My best friends grandma passed and the funeral is tomorrow and they are sitting Shiva until 8 PM I believe. I can’t make the funeral because of work but can attend the Shiva. I have never done so before. The family is not very strict at all (not kosher, does not attend temple regularly, etc.). Is there anything I should know before going? I was going to pick them up some premade dessert or food from this local artisan grocery store I know they love.