When it comes to HBCU sports, there are generally two categories in this that students can participate in: the school ones and intramural sports. We go into details on the differences between the two and which one will be the best fit for you and your needs.
To play on an official school sports team, you will have to basically be drafted in from high school or try out to be on the team, though it generally is a decision made in high school. While you may think that the college coaches will come scouting for you, getting the ball rolling on the recruiting process is actually up to you as a high school student. You'll want to enlist the help of your high school coach and guidance counselor, and they will help you with narrowing down the colleges, scheduling visits, and then filling out the different forms, as well as building up an athletic resume, which is necessary. From there, if they are interested, you may receive requests for videos as well as interviews, and the school may send scouts out to watch some of your games. Once those steps are done, if a school is interested in you, you will receive a letter of commitment. Once this is signed, you are committed to that particular school to play that sport for them. Finally, now that you've signed and committed, you just need to focus on keeping up with the requirements that the school you chose has set, such as SAT scores, grades, etc.
Intramural sports are a much more relaxed version of sports on a college campus. Anyone can join an intramural sports team, and they generally are mixed with both boys and girls, rather than separated like other collegiate sports. These teams also have a much wider option as far as what games to play, and intramurals can be anything from flag football to disc golf to soccer. The requirements are much less strict, though you still will need a certain amount of players, other teams to play, and possibly a certain GPA to participate. Most colleges will have you sign up with your student government, and they will have referees available for the games to help keep the students playing fairly and ensure that the games and tournaments are played properly.
If you are not a student athlete currently, but still have a few years left in high school, you can certainly begin pursuing the HBCU sports now, though it will take a lot of work and dedication. However, if you prefer to just play some sports recreationally when you get to college, intramural sports are more likely the better choice for you.