As above with goo gone, let it sit a bit, rub it with your thumb into little glue "boogers". Sore thumb, and it takes awhile, but it works.
When you think you got it all, hit the area with a quick coat of wax, and look at it from an angle. The wax won't stick to the glue, and the spots you missed will stick out like a sore thumb (pun intended).