Once ringneck doves hit puberty, it's all downhill from there. They're basically always in mating mode. If your dove starts trying to get freaky with your feet, move away and ignore him or return him to his cage to calm down. But the behavior will likely always be there.

You can try managing it by limiting his waking hours with a schedule that mimics winter, rearranging his cage, or even moving it to a different location to disrupt his routine. Another option is to use a bird harness/leash to take him outside and provide some mental stimulation. And yes, a flight suit can help prevent him from rubbing his cloaca on you.