Can you resuscitate someone without an defibrillator?

This depends on what the circumstance is if he/she is choking on water you sould use two hands (while he/she is standing) and squease that should push the water out, when the water is out and he/she is still not breathing preform mouth - to mouth, to do this you must use two fingers to hold his nose (make sure he/she is laided flat) put your mouth fully around his/hers mouth (make sure his/hers mouth is open) then blow air after each blow remove your mouth, breeth, then repeat, do this 10 times if this dose not work you can try heart resuscitation in one hand hold a fist with your thumb on the outside of you hand then place at centre of chest in line of heart then with you other hand push your fist do this in time with a second, push then wait a second then push again you can do this many times but i would do this 15 times, once he/she is breathing stop then help him/her to their feet so when they breeth the air flows straight through the mouth to the lungs.