I do everything I'd normally do. Can you honestly imagine altering your entire life drastically for (essentially) half a month just in case you MIGHT be pregnant? I run, bike, take hot showers/baths, swing from the rafters, eat sushi, drink...
Imagine if you don't get pregnant right away and you do this for months/years. Yeah, no. Unless my RE says I shouldn't do something during the 2WW I don't change shiiiiit.