What does Yibin mean by playing with beads?

Play with beads. In Sichuan dialect, playing means playing, and beads mean beads, because Sichuan likes to say overlapping words.

I'm sure it's my duty to remind you, because it's his job, so you don't have to worry then. I'll let you know by text message or phone. Sichuan dialect itself is indeed a culture, or a complex. In a certain geographical scope, dialects can continue to play a role in promoting nostalgia and family ties.