Hair: tossed. Back: arched. Hops: bunny-style. Viral conversation-starter Ryn Weaver has practiced this before, you can tell.

Ryn Weaver performs at Hype Hotel on March 18, 2015. (Eric Webb/American-Statesman)

The New York-based singer came to this year’s SXSW the old-fashioned way — backed by considerable buzz. (Not all of it positive, but: buzz.) And at Hype Hotel on Wednesday night, Weaver acquitted herself expertly as a pop star worth talking about. Her well-controlled, distinctive voice soared and enticed on songs like “Promises” and “Sail On.” Weaver worked the stage in a way that many singers wish they could, only standing still to clutch the mic and plead with it for dear life. She spoke to the crowd with effervescent, manic perk, asking — bright-eyed— if the audience knew any of her songs, and later effusively sharing details of her relationship with her late grandfather (her “muse”).

It’s hard to peg Weaver to a niche. Ostensibly, she’s an indie pop act, but her meticulous strutting and Tracy Flick chipperness lack the mad genius glint of artists like Robyn and Tove Lo. Her rock-oriented backing band and DIY trappings certainly don’t make her a Britney or a Katy, either.

With such apparent hunger darting from those eyes, it wouldn’t be a shock to see her in an arena someday.