A TikTok’er named Pheobe Parsons has gone viral with her quick way to tell if a woman is a Millennial or Gen Z. Look at their feet. Or, more specifically, their socks.

Millennials wear ankle socks, which you CANNOT see . . . but Gen Z wear longer socks that you CAN see.

@phoebeacp This is exactly how to tell the difference between a millennial and gen z just by looking at their feet #millennial #genz ♬ original sound – Phoebe Parsons