pick up on
US /pɪk ʌp ɑːn/
UK /pɪk ʌp ɑːn/

1.
bemerken, mitbekommen
to notice or become aware of something
:
•
She was quick to pick up on his nervousness.
Sie war schnell dabei, seine Nervosität zu bemerken.
•
Did you pick up on any strange vibes from the new neighbor?
Hast du irgendwelche seltsamen Schwingungen vom neuen Nachbarn aufgeschnappt?
2.
verstehen, begreifen
to understand something after it has been explained or demonstrated
:
•
It took him a while to pick up on the new software.
Es dauerte eine Weile, bis er die neue Software verstand.
•
The students quickly picked up on the new grammar rules.
Die Schüler verstanden die neuen Grammatikregeln schnell.