They are people from all around the world and of different ages who enjoy learning languages. Students browse through tutors and go through their tutor cards and profiles.
Make sure to keep your profile full and up to date. Include as much relevant information as possible.
To edit your profile, go to "Tutor studio" > "Profile" > find the "Edit profile" button. The "Profile Setup Guidelines" are here.
You are also free to both learn and teach at the same time.