Which perfumes leave a scent after you've gone?

[Molotov]

I've noticed that a couple of the very chic mums from my dd's school wear perfumes that you can smell, even after they've gone. They're not heavy/overwhelming (such as Obsession by CK or Envy by Gucci); just ... beautiful!

I don't know these women other than a nod a smile on the school run, so feel it's a bit weird to ask them about their perfume.

Any recommendations, please?

Tresor, by lancome. Has to be EAU DE PARFUM the ORIGINALS one. I get asked all the time.

Knowing by Estée Lauder. Everytime I wear it at least one person asks what it is including complete strangers. I can't smell it on myself and tbh stopped wearing it as so many people commented I thought it must actually smell too strong or really awful but accordng to my good friend and my DH it just really smells nice, different but lovely , he says it is light flowery and fresh.