A/N: Finally got the urge to write another chapter of this. It's all because of a dumb coffee joke, but sometimes, that's what it takes to get inspired. As always, I don't own the Potterverse.
parea - (n.) a group of friends who gather together purely for the enjoyment of each other's company to share experiences in life, their philosophies, values and ideas, and to celebrate the simple things in life; a group of people who derive great pleasure simply from being together, most often spontaneous and always a celebration of a group [greek]
"You're telling me you've never been to a coffee shop before?"
"I don't know; what makes it specifically a coffee shop and not some other kind of shop?"
"The fact that you don't know tells me you haven't. Come on, we're changing that TODAY."
Hermione grabbed Luna by the hand and dragged her off towards Trafalgar Square. She paused long enough to send Harry an inter-office memo suggesting that he and Ron take a coffee break and meet her at their usual place. While she much preferred the coffee at Rawthmell's, only Costa Coffee offered a brew strong enough to meet Ron's taste. The other advantage was that Costa was open all over London, so Luna would not be limited to a single shop on her first try.
The shop was fairly quiet when they arrived, allowing Luna time to take in the atmosphere of the place. She tried mentally comparing the place to other establishments she had visited, and found that Hermione had made a solid point; a coffee shop really does feel like a coffee shop, and not like anywhere else. They allowed a few other patrons to pass them by, giving Luna a better chance to see how coffee was ordered at a non-magical restaurant, and also letting Harry and Ron catch up.
The group placed their orders, with Luna pausing a little longer at the front, having recognized the barista as a former classmate from Ravenclaw; none of the Gryffindors were terribly surprised they didn't recognize the much younger girl. They grabbed a table near the center of the shop while Luna finished her chat; a quick giggle and waving of fingers had her join them moments later.
While they often saw each other at Ministry functions, the four friends did not actually get much time to relax and simply catch up. As such, they took full advantage of their shared break to chat about their lives outside their everyday duties. None of them would remember what was discussed later, but all enjoyed the time immensely.
Soon, their coffees were ready to go. Hermione explained that, normally, you sat and drank your coffee in shop, but they had jobs to get back to today, so theirs were to go. Luna nodded; having been merely visiting today, she didn't have to rush off anywhere, and would enjoy her full experience. She sat and sipped, quietly amazed at how much the coffee added to the experience of the shop.
She would definitely be back, she decided, if only to get more of these Espresso Patronum coffees her classmate had suggested.