If a person of the stature of Swami Vivekananda passed by, those nearby would immediately get affected by spirituality followed by him. The aura of an advanced seeker affected one and all in equal measure. A person who is intoxicated by material riches would feel lesser impact of Swami Vivekanandas aura than religious practitioners who also believed in spirituality.
Aura of any seeker always affected those surrounding one. The same was the case with Mahavira, Gautama Buddha even Jesus Christ and Prophet Mohammed. People loved company of these enlightened souls. When in their company feeling of ecstasy, bliss immediately took over.
As kundalini awakening relates to activation of dormant lying portions of brain, one with awakened kundalini can always see through workings of other peoples brain.
On a spiritual note, the kundalini activation of one does not affect others. If my kundalini is getting awakened, does not mean the kundalini of others could be affected. In field of pure spirituality, spiritual terms like shaktipath carried no meaning. A true seeker never believed in shaktipath.
Yes by holding hand an awakened one can pass positive energy to others. One can experience the aura, positive energy in the company of one, prime reason why masses, commoners attended Satsanga of enlightened ones. In company of enlightened ones, a commoner practically gets transported to higher states of consciousness that were temporal but never permanent.
The aura of a truly enlightened one like Mahavira, Gautama Buddha even Jesus Christ and Prophet Mohammed always spread far and wide.
As our progress in kundalini awakening, proportional the spread of aura! Even a novice in search of God has an aura but at a very lower level. The aura of an enlightened one could spread to miles, even continents.