Can I move to another checkout?
'Passare' — 'pas-SA-re'. Three syllables, stress on second.
When your queue is very slow and another lane opens. It's polite to ask — in Italian queue culture, switching lanes randomly can cause friction.
'Passare a un'altra cassa' = to move to another checkout. 'Posso' = can I. This is a polite way to announce you're moving to prevent others thinking you're queue-jumping.
Si è liberata una cassa.
A checkout has become free.
Alerting others that a new lane is open
Mi faccio servire lì.
I'll get served over there.
Announcing you're moving to another till
Le dispiace se passo all'altra cassa?
Do you mind if I move to the other checkout?
Very polite — asking the cashier's permission
Italian supermarket queue etiquette is strict. Moving to a shorter line is fine when done visibly and with communication — sneaking forward is considered rude. 'Buona spesa!' (Enjoy your shopping!) is the standard cashier farewell.