Before you can participate in a study, you need to create an account, then apply to the study, and be accepted. All of the studies you qualify for are automatically listed under the "Studies for You" heading. To apply for a study, click the "Apply" tab to the right of the study name.
You will then answer up to five application questions, which should take you less than a minute. The researcher will then review your answers and accept or reject your study application. This usually happens within 24 hours, and you will be notified of the researcher's decision via email.
If you don't see any studies listed under the "Studies for You" heading, it just means that we don't have any studies for you right now and that you should check back later.