When a girls says "I'll let you know" what does it mean? (Page 3)

[Gedaria]

Usually it's a polite No...

[KrakenAttackin]

It means "fuck off".

[Anonymous]

It means she’s flaky or not interested

[dolemite58]

She’s not interested

[Alperengin1]

she says go away

[Pegases]

Means No.

[DermalPunch]

Yes, she is.