How do y'all get referrals? :-0

Hey everyone,

I've just started to applying for jobs, I have a Bachelor's in Computer Engineering and some internships I did that had to do with Image detection.

I noticed from a lot influencers and the numerous.. numerous youtubers out there to... always apply by getting a referral. But honestly I can't do it man, on Linkedin, do just hitting up connect with just some random person and then start asking if they can refer me? How y'all do it?