My female flares, it's just not as pronounced as my male. She has a much smaller beard than he has, but it's there. You can't see it when she's not flaring, and even sometimes you can't see it when she flares. You can see the outline of his beard all the time and it's much, much larger than hers when he flares.
She also makes random, small bubble nests all over her tank when she gets eggy. His are very planned out, large, and obvious - around his fake plant, along the wall by his live plant and heater.