If you want to win attention of some of your classmates and not embarrass yourself in the process, there are a few simple rules that you should follow.
First, your friends may know more about this person than you do. Ask them what they think about your crush before you pursue the relationship full throttle. No one wants to embarrass him or herself by coming on to someone who is already involved with another person. Rejection is definitely not your goal. The more you know about your crush the better. You may find out that they really aren't your type and in doing so will save yourself a lot of trouble. On the other hand your friends may be crushing on the same person. Weigh what they say with a grain of salt and follow your own heart.
Second, you will want to find a way to talk to your crush. To your advantage, you will have homework in common with a classmate. Ask them about the current assignment or what they think about the latest movie shown in class, recent test or assigned book that you are reading. If there is an upcoming event at school you can talk to them briefly about that in the hallway such as a football game, homecoming, or a rally. Sometimes there is safety in numbers; tell them that you will see them at the event along with your friends.
Third, consider what you will do if you land a date with that special person. It is uncomfortable if you both decide to go on a date but have no ideas on what you will do. Some simple ideas for a first date include going to a local sporting event, hiking or bowling, visiting a museum or the ever-popular dinner and a movie. All of these ideas are easy and affordable for a first date with a classmate.
There are also a few simple don'ts for high school dating. These include inviting all of your friends along for that first date or telling them where you are going so that they can be hanging around in the background. Dating isn't a group activity unless it is an agreed upon double date. It is also considered rude behavior while on a date to be constantly on your cell phone giving your friends a play by play of your date. While this may be fun for you it may make your date uncomfortable.
The final big don't is stalking your classmate crush. If you are constantly showing up at their sports practice after school, hiding in the bushes around their house or calling them up and hanging away, you've gone a little too far. While it is normal to want to be close to someone you really like, stalking him or her is a bad thing. If you have tried to talk to them and they just aren't interested then you need to move on. There is an old saying that you can lead a horse to water but you can't make it drink. This is true with relationships as well.
If you have tried a relationship with one of the high school classmates and it has not worked out the way you wanted, don't worry about it. Things are constantly changing in high school and any thing that seems embarrassing today will soon be forgotten. On the upside, many classmates that date in high school grow up and eventually get married. There is no way to tell who will fall in love in high school but the odds are in your favor that you will find a soul mate in somebody among your classmates.