It's time to decide which candidat you like/dislike
It's easy :
You just have to click on the "thumb-up 👍" button to like and on the "thumb-down 👎" one to dislike, following the example below:
When you like a candidate, a notification is sent, showing him/her that you are interested in his/her profile.
If the interest is shared, you could start chatting with the developer (premium plan only).
NB : A candidate will not be notified if you dislike him/her.