GTM Sauce

The Superwall Podcast · 2025-10-21

Eunice Lai - This 20yr old girl is a marketing genius…

Eunice Lai, a college student who ran marketing at AI social network Series and has since joined her friends' startup Sonar, on Gen Z startup content. She turned real Hinge chats about her 'startup' into viral tech-Twitter posts, then onboarded one date as a user in person. For Series' Hamptons TV show she turned ~2,500 LinkedIn applicants into a 150-person race with invite challenges; after the first posts, 100+ interns posted on LinkedIn in 2 days. Also: a collab launch video for dating app Cupidly (1.5M views), calm horizontal Reels, and trusting creators with qualitative goals.

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6 tactics

Series · B2C · AI social network

Tweets went viral on tech Twitter; one date became a user; no numbers

Plain 'build in public' tweets got no attention, so Eunice (marketing lead) listed her job on Hinge as just 'Startup'. When matches asked, she teased instead of naming it ('the first AI social network') and tweeted screenshots of the real, unfaked chats, e.g. a match who looked her up and said Series was cool got 'So, you're trying to become a user?', with him saved as 'Jason (Hinge)'. She played up an 'SF tech girl' persona all the way. As a follow-up she went on a date with him and walked him through Series' onboarding in person. Followers began finding her on Hinge in other cities and joining in.

Workedorganic-socialfounder-brand
The Superwall Podcast · 2025-10-21

Series · B2C · AI social network

~2,500 applicants, 150 racers; top racer invited 120 people in a day

For the Series Hamptons campaign (a TV-show-style series with 12 intern spots), Series put up a LinkedIn post and LinkedIn job, got ~2,500 applications, and Eunice personally texted many applicants to invite them into a 'race to the Hamptons' rather than just picking 12. About 150 joined. The race had challenges; one of the last was to invite as many people as possible.

Workedorganic-socialreferral-program
The Superwall Podcast · 2025-10-21

Series · B2C · AI social network

100+ interns posted a banner and a paragraph within 2 days

Students rarely post on LinkedIn, so during the Series Hamptons race Eunice got one or two participants to post first. Once those were up, the others felt comfortable, and 100+ interns posted a campaign banner plus a paragraph on what the journey and entrepreneurship meant to them. She frames it as social proof from decision science.

Workedorganic-social
The Superwall Podcast · 2025-10-21

Cupidly · B2C · dating app

~1.5M views from a founder with 2-3K followers

Jonathan, a founder building a dating app who had replied to Eunice's tweets for a while, asked her to appear in Cupidly's launch video while she was going viral for her Hinge posts. He pitched it as good for both of them. He also asked permission to reference her recently deceased puppy as bait, and left a deliberately outrageous comment about it on her post, which drove outrage and engagement. The tweet tagged her in the middle. Eunice's condition: it works only when the two parties naturally fit.

Workedpr-launchpartnerships
The Superwall Podcast · 2025-10-21

A tech startup · guest's first startup job

Went viral with VCs; guest says it helped raise $3M

Eunice, who has a film background, made a cinematic launch video for her first startup employer; it went viral in the VC world.

Workedpr-launchfinancing
The Superwall Podcast · 2025-10-21

Eunice Lai's personal Instagram

35K views turned into 200-250 new followers

On her personal Instagram, Eunice switched from cinematic vertical Reels to a horizontal, lightly edited ~1.5-minute video of herself talking about her life, with no loud text or rage-bait, but still opening with a hook. Her rule: do the opposite of what's popular in format while keeping proven basics like hooks.

Workedfounder-brandorganic-short-video
The Superwall Podcast · 2025-10-21

Numbers mentioned

WhoMetricValueContextWhen
Guest's original startup employer that raised $3M after her launch videofunding raisedUSD 3M/one-timeRound Eunice says her viral cinematic launch video helped raise6:17
Seriescount2,500 applications
estimate
Applications from one LinkedIn post and LinkedIn job for the Series Hamptons intern TV show20:03
Seriescount12 internsSpots on the Series Hamptons TV show20:25
Seriescount150 participants
approximate
People who joined the 'race to the Hamptons' competition for the show's spots20:25
Seriesactivity volume120 invitesper participant /dayInvites sent in one day by the first-place participant in the 'invite as many people as you can' challenge20:25
Seriescount100 posts
approximate
Interns who posted a banner and paragraph on LinkedIn about the campaign within 2 days ('over 100')18:24
Cupidlyviews1.5M viewsper video
approximate
Cupidly launch video featuring Eunice14:47
personJonathan, Cupidly founder, on X before the launchfollowers2,000–3,000 followers
estimate
Before the Cupidly launch video14:10
personEunice Lai's personal Instagramviews35K viewsper videoCalm, horizontal 1.5-minute talking Reel15:52
personEunice Lai's personal Instagramfollowers+200–250 followers
estimate
New followers from the 35K-view horizontal Reel (~0.6-0.7% view -> follow); she calls it very high for Instagram15:52
Guest's father's travel startup that sold to Trip.comteam size50 employees
approximate
Peak headcount before running out of money and selling to Trip.com9:00