I don't like the "don't think" and "turn your brain off" comments in regards to following, following is a very active thing to do that requires a lot of learning to do well. You're not planning ahead but you can absolutely think. Also often when social dancing you'll have a much more enjoyable dance if you do a little bit of helping when following i.e. something isn't lead perfectly but it's enough so that you can figure out what was meant in the time given but if you were only sat on pure "honest" following you wouldn't do the pattern or whatever it is. Lessons is different but social dancing is done for fun, it's not a lesson so maximum enjoyment for both parties is something that has value vs. trying to be a total stickler for technique from everyone.