"Hi!" Wait you already said that, dummy... "Uh ... Soooo the last time you were here, we only had non-vegan cookies, and I didn't know that you were vegan, but now I do so I found some recipes and I made a bunch, I wasn't sure what you liked, but I just tried a bunch so if you wanted to come over again sometime, we now have stuff for you to snack on?" All of this was said in one breath and at top speed.