Finding the money first

I just watched a video about this on YNAB. It’s something I realized that I haven’t been doing. I’ve mostly been spending and doing damage control later, but I’d like to start being more intentional.

Yet my question is, how practically do you all do this? I feel strange whipping my phone out when I’m with friends and being like “just a second I’m not sure if I can, I have to check my budget first”

Ya know?