How to follow up and make her invest ? How is it do far ?

Bruh take it easy, the goal is to vibe not to call her out from the get go

Check your grammar. "So what are really you big center interest?" was clunky. I don't ask I girl what she does for work, generally, I stick to "So where are you from originally" and if she says our current city I say something like "Wow, we've been here this long and we still haven't had our date". Try to keep in mind that your conversations should be fun & flirty, and think a step or two ahead about how to can craft your conversation to lead down a fun & flirty path rather than a boring interview, but also keeping what girl says in mind so you don't end up being a texting robot. So you're right this girl is showing low interest, but it was too soon to call her out for it, conversation was barely underway. I usually say "love the enthusiasm" with low-investment girls. For your situation, I recommend using humor to get out of this. I'd say "To my uncle, he took my phone. Don't worry I'll keep him on a tighter leash. You're good"