Tips for improving at Pad/DDR?

[Zyxel]

Sup fellas! I had a question!

Me and a couple friends drove out to this arcade that had a lot of sick rhythm games (i.e sound voltex, beatmania, pump it up, etc.) and they also had a really nice DDR Ace cabinet. Seeing this, me and one of my friends spent several hours playing DDR but I was (understandably) significantly worse than when I'd play on a keyboard. However-- reading wasn't the issue, rather, I didn't know how to move my feet efficiently to hit certain patterns.

At first, I could barely play any 4s but by the end of the night i was able to AA a couple 8s and 9s, but I'd like to get at least as good as my friend who was FCing 13s and 14s. Any tips on how to get into, get better, and improve at DDR? Thanks for reading and thank you for any feedback!