I have made a lot of time for dancing lately. With that time, I have been improving again. My balance is better, and some nuances of connection in the embrace have improved. Instead of trying to lead broadly through my whole chest, I try to put intention into the actual point of contact (sternum to sternum, sternum to ribs, belly to sternum, whatever it might be).
Visualization has a surprising effect on physical performance. In the case of playing a musical instrument, some study has been made of the neural effects of virtual practice (imagining the specific practice activity) vs physical practice. The neural growth and connection in the mind after the period of training was very similar between the two groups. (The paper is here, and a description here).
Now, this doesn't directly carry over (although looking at whether visualizing better technique would improve it fascinates me), but of late I have been focused on visualizing the connection between me and my partner. Imagining some warmth there, which passes information.
It seems to help, anyway.