To like a profile, tap on the "tick" button at the bottom of the profile card. To increase your chances of getting a like back from this profile, you can also send a Crush. Crush allows you to send a customized message to users you really like. You can also like a user by giving answers to the questions they have asked. If you like someone and they like you back, it’s a match! You can then begin chatting with each other. You can see all your matches in the Matchbox section, which you can reach by tapping on the icon on the top right of your home screen.