But before I get into talking about those particular bots, let's go over how you find them in first place. First, you have to download the latest version of Messenger -- it should be available on both Android and iOS. Once you launch the app, you'll find that there's now a persistent search bar at the top. Tap it and you can start searching for your bot of choice.

Peter Martinazzi, a product manager for Messenger, told me that eventually they'll start populating the search area with bot suggestions based on previously used ones. Right now there are a few dozen or so bots, with more to be added in the coming months. Once you've made your selection, you'll see a splash page along with a description of what it does. Underneath is a "Get started" button that launches a conversation.

I was only able to really put the CNN and Poncho bots through their paces during my brief hands-on at F8. (Others I was only able to get a passing look at basically.) CNN sent me a greeting, along with instructions on how to use it -- I can either type in a few keywords to look up certain stories or choose between "Top Stories" and "Stories for you". The latter defaults to just popular articles for now; though the idea is that the app will learn your preferences over time.

After selecting "Top Stories," the CNN bot returned a list of five articles laid out horizontally. Just swipe left or right to navigate through them. This layout makes a lot more sense than the beta Bing News bot I tried on Skype, which returned vertical search results -- a horizontal layout doesn't hog up the whole screen, letting you see more of the previous conversation.

Each CNN story had its own "chat bubble" complete with image, headline and three options: "Read story," "Get a summary" or "Ask CNN." "Read story" simply kicks you over to the CNN mobile page to read the whole story, while "Get a summary" prompts a quick one to two paragraph summary of the article. "Ask CNN" simply asks you keywords to get more specific results. On the whole, the bot worked pretty well considering it's brand new. I especially liked the news summary response that gives me a brief overview of the news without having to read the whole story. Still, you can't really get too sassy with it -- typing "Hello" and "Goodbye" will just return results that have those words in the headline.

Poncho, on the other hand, is a little glimpse into how chatbots can be funny and sassy. Once I hit "Get Started," on it, it pretended as if it was waking up from a long slumber. It purred. Then it identified itself as a "weathercat," at which point I could either respond with "Weathercat?" or "Um, okay." It felt like a choose-your-own-adventure game.

It then asked me my location, at which point I replied "San Francisco." It took a few tries -- Poncho just launched a few hours ago and is still fairly new -- but it eventually gave me the current temperature and weather condition (59 degrees Fahrenheit and mostly cloudy, if you must know). You can even ask it to convert to Celsius and it'll do so. I asked it to tell me a joke, to which it responded, "Excuse me, I'm not just here for your entertainment." "Haha," I replied. Then it said "Hehehe." I was charmed despite myself.

I also played around briefly with the WSJ bot (get the latest updates on stocks), plus the 1-800-Flowers bot (order flowers for your sweetie right on Messenger) and both worked well enough. I tried to get the Healthtap bot working to see if it could diagnose a phantom cramp, but it wasn't quite ready at the time. If you'd rather not get any more messages from a bot, you can always block them. Another concern are sponsored messages -- Facebook has to make money on this whole bot thing somehow -- but you're free to block those too.

As for response time, well, it varies. I actually got responses pretty quickly -- just a few seconds after I sent the initial text. But I've read on Twitter and elsewhere that people have experienced minutes-long wait times, which isn't ideal at all if you're waiting for an update on something like breaking news or the weather. My guess is this is all just teething problems right now, but who's to say what the lag time will be once more people start using these bots.

On the whole though, I found bots on Messenger to be surprisingly fun. I liked that CNN and Poncho felt so different -- one is clearly utilitarian, while the other was funny yet useful. I'm looking forward to see how the whole bot experience would feel with other businesses, like restaurants, banks and actual choose-your-own-adventure games. Imagine if someone created Zork for Messenger. I'd play the heck out of that. As long as I don't get eaten by a grue.