How do you increase the sperm count?

By wearing boxers instead of briefs, no lie.

eat more eggs

Wear boxers, not tighty whities. Boxers will help keep that area cool and the other ones make it hot down there, causing sperm to die.

you cant really, most is genetics but eating healthier and keepin it cool down there will increase the count a little bit.

i ate pineapples the other day and after i masturbated i seemed to have more. just puttin it out there for ya

Well if you keep masturbating, you testicles will get used to keep on refilling (basically they start making sperm faster) then if you suddenly stop then your testicles are still making sperm at that rate so in the end you will have more sperm than in the beggining
lol sure your teacher asked you

btw can anyone of you people answer my question?
http://answers.yahoo.com/question/index;_ylt=AkuQhf2r2loREQ3S3SMGz_rsy6IX;_ylv=3?qid=20090603141929AAbXEfL

It depends on your metabolism, diet, and the last time you previously had an orgasm.

I've read that if you are good to your body like exercise, eating healthy you produce more.

If you smoke, heavy drinker, smoke pot, etc then you lower the count.

You should read about sperm competition. It is one of the main mechanisms responsible on the amount of semen produced in males, both in humans and animals.