As we ease into fall and the temperatures start to dip, delivering some of the best running weather of the year, it’s the perfect moment to reassess your go-to gear, starting with your running shirts.

Ah, the age-old question, one that’s driven people to pluck does-she-doesn’t-she daisy petals for almost forever: How to tell if a girl likes you. Flirting tends to come with sometimes aggravatingly ...