The kids are way into this Hello Lamppost Austin project going on around the city for the next 9 or 10 weeks. Basically, you find an object in the city (or the code for it online) and then text 512-580-7373 in the format "Hello object #55555" and the object converses with you for a few minutes. If you retext the same object, it will remember you. There's a map here of some of the objects. A favorite over here is lamppost #AD12 - lol - I have no idea where that even is we just foud the code online somewhere. Every time the kids get their hands on a phone, this is their current choice of activity, so if you text and object and get back a unicorn emoji or 12, don't be surprised.
I believe this is the 2nd city to host this project - the first being Bristol in the U.K. Probably has something to do with SXSW :)