What does “Twinkle” mean? (Kuala Lumpur)

IN answers :

To “Twinkle” is an easy and informal way of saying “Hi” to other members without requesting contact. The member that you twinkle will get a notification with a short text saying that you twinkled him. Weather the member twinkles back, writes you a message, requests your contact or does not react at all remains his/her decision.

so twinkle means just Hi.. nothing more than that?