How do you use a condom?

Open the condom package at one corner being careful not to tear the condom with your fingernails, your teeth, or through being too rough. Make sure the package and condom appear to be in good condition, and check that if there is an expiry date that the date has not passed.
Place the rolled condom over the tip of the hard penis, and if the condom does not have a reservoir top, pinch the tip of the condom enough to leave a half inch space for semen to collect. If the man is not circumcised, then pull back the foreskin before rolling on the condom.
Pinch the air out of the condom tip with one hand and unroll the condom over the penis with the other hand. Roll the condom all the way down to the base of the penis, and smooth out any air bubbles. (Air bubbles can cause a condom to break.)
If you want to use some extra lubrication, put it on the outside of the condom. But always use a water-based lubricant (such as KY Jelly or Liquid Silk) with latex condoms, as an oil-based lubricant will cause the latex to break. Click here to see picture of lubricants.
The man wearing the condom doesn't always have to be the one putting it on - it can be quite a nice thing for his partner to do.