A small wave or series of waves on the surface of water, especially as caused by a[n]… object dropping into it [1].
here i am. dropping stones
A disturbance or variation which travels through a medium [2].
disturbing my medium. dropping stones

References

1. Ripple. Retrieved 23 November, 2016 from:  https://www.google.com.au/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=ripple%20definition
2. Wave. Retrieved 23 November, 2016 from:  https://www.google.com.au/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=wave+definition