How to make friends

Hi I'm still young..early 20s. I do want to make friends but it's hard for me. I'm a shy guy. Anywho I am not sure what the right way of making friends is. Or how to chat, interact and do all that. I'm from the US if anyone is wondering. I am so friendly that I thought I had friends in high school but sadly once that ended I was back to been a loner/lonely person. Which I don't mind but at times I want to tag along even if it's for something simple or unworthy. I would even like to go to places to hang out but I dont have transportation myself alone. So is there any advice or anyone willing to make friends. I'm nice that I have a peaceful like personality. (P.s I added extra stuff in the end 😭😂)