is the leak by the radiator itself?
how old is your radiator?
might be the endtanks - or by one of the inlet/outlet necks( try to reach your hand down by the lower hose at the radiator to feel for coolant)
pull your fans and try get a better view.-it should take no more’n a half-hour
youre gonna have to get her up on jackstands and get under there and look and feel for a leak.
-you cant see anything dribbling down the block can you?
and you might wanna look into replacing your rad. i just replaced my 11 year old one yesterday and it was SHOT!