The laying on of hands is simple; a simple circuit.

Thus, it is TWO hands, not one.

They will lay hands on the sick and they will recover. (Mk 16: 18)

With children the order is laying hands AND THEN praying;

Then some children were brought to Him so that He might lay His hands on them and pray. (Matthew 19:13)

Laying on of hands is a separate ministry of its own.

With impartation the order is praying AND THEN laying on of hands;

And these they brought before the apostles; and AFTER praying, they laid their hands on them (Acts 6:6)
Then, when they had fasted and prayed and laid their hands on them, they sent them away (Acts 13:3)

And it happened that the father of Publius was lying in bed afflicted with recurrent fever and dysentery; and Paul went in to see him and AFTER he had prayed, he laid his hands on him and healed him (Acts 28:8) 

For this reason I remind you to kindle afresh the gift of God which is in you THROUGH the laying on of my hands (2Tim 1:6)

Too often, we rush in, quick lay hands on someone and in the same moment pray.

But we must wait, be led by the Holy Spirit, hear His voice and leading (then you can know where to lay your hands if it is necessary), know what the circumstance requires and understand that laying on of hands is a ministry of imparting all on its own. It is a DOING moment, not a SPEAKING one.

We need to have that ‘light bulb’ moment.