How will i know if the mouth-to-mouth and nose resuscitation i performed is effective?

Few things: Patient's chest wall expanding well with your good efforts at mouth to mouth which you can see while doing, pts' efforts to come back to life like improving colour of skin from pallor/blue from cyanosis to better colour, blinking his eyes, body movements, efforts to cough, efforts to get up on his/her own from the lying surface, vital signs returning such as carotid pulse, spont.Breath efforts, moans.