I cannot find my headphones on my laptop

Assuming you could see something as large as a pair of headphones on a laptop computer, I assume you're looking for the audio output jack. It will be one of three or four stereo jacks. If your headsets take a line level input, use the jack colored lime green.

usually, the jack is on the left side of the computer, if it is not, then it is most likely on the front. There are two jacks. One for speakerphones, and one for headphones. The one that you want should have an really small image next to it that resembles a headphone.

You can plug your headphones in on your computer well it depends what computer or laptop it is usually a plug with a small pic of headphones next to a plug with a pic of a mic ontop