strike up
US /straɪk ʌp/
UK /straɪk ʌp/

1.
entablar, iniciar
to start a conversation or relationship with someone
:
•
He always tries to strike up a conversation with strangers.
Siempre intenta entablar una conversación con extraños.
•
They struck up a friendship during their trip.
Entablaron una amistad durante su viaje.