Create a professional profile
As your profile is the only way students know about you, it is very important for you to spend time optimizing your information. Good profiles should avoid spelling mistakes; have a high- quality, professional profile picture, and a good video introduction. You can always use the self recording system of your video introduction on your profile page. If you log in from Facebook, your profile picture may not be the most professional picture, and you may think about changing it.
Prepare a specific introduction
Include as much information as you can; what topics can you teach, what tests you can prepare students for?
Lower your prices
Think about lowering your prices or even teaching for free for a few classes until you get some reviews. As you gain more reputation, you can increase your prices gradually.
Contribute to the wall
Participating in the wall will earn you visibility. Correct grammar mistakes, answer questions of students. This is an indirect way of attracting more students as not only students who write in the wall will contact you, someone else reading your posts may contact you.
Write about anything on the wall
Write an article on language learning. This will show the students you care about what you do and will spark up interest.
Search students from student list
You can message potential students about yourself.
Do not spam
You can always message students and let them know about your teaching skills but nobody wants to get spam mails. Message them only if you are sure you are a good fit to their language learning needs.