on pins and needles
US /ɑn pɪnz ænd ˈniːdlz/
UK /ɑn pɪnz ænd ˈniːdlz/

1.
sulle spine, in ansia
in a state of anxious expectation; nervously awaiting something
:
•
I've been on pins and needles all day waiting for the test results.
Sono stato sulle spine tutto il giorno in attesa dei risultati del test.
•
Everyone was on pins and needles as they watched the final penalty kick.
Tutti erano sulle spine mentre guardavano il calcio di rigore finale.