Buying someone a drink in person is a nice gesture, but buying someone a drink via Twitter is, well, not something you do often.

Online networking app Tweet-A-Beer hopes to change that and make paying for other Twitter users’ drinks more of a habit. The web tool officially rolls out at South by Southwest.

Here’s how it works (flip through the gallery below for a visual tour): Tweet-A-Beer uses Chirpify — an ecommerce platform that lets you buy, sell and donate money — to sync your Twitter account to your PayPal account. You can safely send beer money in $5 allotments.

Oregon-based agencies Waggener Edstrom Worldwide and tenfour brewed the app for public consumption in six weeks, just in time for SXSW where networking is known to stem from quaffing alcoholic beverages.