Hanging Out W/ Someone Who Had Noro 3 Days Ago. Questions.

The girl in question is not still sick, but she sure was on Tuesday. (She passed the illness to another one of our friends, who will not be attending tonight). :(

What precautions should I take to ensure that my gf and I don't catch it? I know not to eat anything around her, as noro is infectious via the oral route. I plan to take a loooong shower and wash my hands after we leave too. Is there any risk from just being in the room with her or touching objects she's touched? Just need some quick reassurance. Thanks~