4-47-2 Warning for delay for contact with the free thrower.
 

What do you allow by way of contact in between free throws? A high five only, any discussion at all? Where do you draw the line as the rule actually states "contact with the free thrower."

No Harm, No Foul, No Muss, No Fuss
 

Though 10-1-5d prohibits even "contact", about all that happens in this area is a quick "low five" with either one or two fellow players. Never more, and never enough to cause even the slightest delay in administering the next free throw.
Since it hasn't been a problem, no one around here is looking for a solution, let alone a warning. Never seen one given. Never gave one.
I guess if a delay for administering the next free throw arises, then we'd have an issue to solve.
Eager to hear from those in other areas with other experiences.

It's a delay warning. Interprtet the words / judge the action in that context.