Randomly toggling visibility over time

Greetings!

In a cheap attempt to simulate eye blinking of a character, I overlapped a sphere over an eyeball to simulate eye blinking. Works fine when toggling the visibility on/off but I struggle to find an efficient way to make it visible (eye closed) sporadically over time in my blueprint.

What would be the best way to make it work?

Thank you for your time!

delay node, with random time, to another delay node witch a short delay.

Basically delay random second/s then close eye, delay very short then open eye.

simple, but should suffice.

Indeed simple, but works really great! Thank you Kipplinger!