lead on
US /liːd ɑːn/
UK /liːd ɑːn/

1.
iludir, enganar, dar falsas esperanças
to encourage someone to believe or expect something that is false or will not happen
:
•
He didn't want to lead her on, so he told her he wasn't interested.
Ele não queria iludi-la, então disse a ela que não estava interessado.
•
She felt like he was leading her on with his promises.
Ela sentiu que ele a estava iludindo com suas promessas.