- friend system usage
- Appears next to a friend's name on their birthday via the birthday cake badge feature, notifying you to send a snap.
- streak use
- Sent as a birthday snap to keep the streak alive while also acknowledging the occasion.
- story meaning
- Posted on one's own birthday story to broadcast the celebration to all friends.
- snap context
- Often sent as a quick cake snap selfie or a photo of an actual cake to mark the day.