In Azar, you can send thumbs-ups to show your interest to another person.
You can send thumbs-ups by clicking the 'Thumbs-up' icon located on the upper right side while matching.
Please be advised that free gems are not awarded for collecting these thumbs-ups, but you can earn up to 999 gems with 25 Special Thumbs-ups you receive as gifts.
To find out more about opening a Gem Box with Special Thumbs-ups, please click the link below:
“What Is A Gem Box?”