I will give you some of my favorite things to do/use to do in Austin.

Grab the best BBQ at Salt Lick out in driftwood, make sure to bring a 6pack of beer its like a 30min wait but it's a fun time. Grab tacos from Mi Madres they have great Barbacoa tacos and Carne Guisada w/cheese tacos. Grab some sushi at Sushi Junai by UT Campus. Try the cucumber passion roll, you never had anything like it. Check out some Live Music at The Mohawk, be kind and tip the bartenders. Check out some Local austin indie/obscure films at AFS Cinema its a vibe. Check out the six-story high IMAX Screen at Bullock Museum/IMAX Theatre, If your into gems stones/rocks and how they are made, a very cool place to check out called Nature Treasures you can find some good pricing there on some raw materials. Some local bars to check out if you want to just hang and talk to locals, Hole in the Wall, The Spiderhouse Ballroom, Casino El Camino Southside, my advice would be stay away from 6th street bars.

Last thing I would say come check out PlebLab let us know your a stacker and will be extra nice to you. jkjk

Have a great time in Austin!