If I get an invite to lunch, I'll make that my one-meal-a-day. If I don't, I'll generally wait until around 5-6pm before either hitting a friend up for dinner or just going to grab whatever I feel like eating. My social life isn't good enough that I often get lunch and dinner invitations on the same day, I'm looking forward to solving that problem when it becomes one.
Long-term IF essentially made hunger a non-issue for me. I believe something neurological happened where my vagus nerve system got decoupled in some way from my CNS brain. I get hungry, but it's easy to ignore and to make my decisions on socially-practical grounds rather than the purely immediate.
Yesterday I had called up my business partner for dinner in my car right as I was about to leave. He didn't pick up, so I started driving. I get a few blocks down the road and he calls back, accepting my invitation. I did not mention that I was already in my car and hungry, simply drove back home. It was another two hours before we finally sat down for dinner. None of it bothered me, the hunger just went away when I willed it to.