how to make particle wiggle?

[TheWildMeerkat]

We have created a simulation tyflow and we want to add this "Wiggle" effect to the objects like this reference before the objects has been duplicated .  
https://www.youtube.com/watch?v=mcMjdSk9EfY (1:03) .
this is the graph we got so far .
https://ibb.co/4gXRsPz
any idea how to make particles wiggle in place?
Thanks for you help !