The gold heart means you both are best friends.
Snapchat says a gold heart next to someone's name means you send the most snaps to this Snapchatter, and they send the most snaps to you, too.
A smiley face means this person is one of your best friends.
This isn't your No. 1 best friend, but this is a Snapchatter you send a lot of snaps to.
The sunglasses emoji means you share a close friend.
If you see this symbol, it means one of your best friends is also one of this Snapchatter's best friends.
A smirking face means you're their best friend, but they aren't your best friend.
You're someone they send the most snaps to, but they aren't someone you send snaps to the most.
If you see the flame emoji, you're on a Snapstreak.
Snapstreaks are a score from Snapchat that tracks how many consecutive days you've snapped back and forth with a friend.
If both you and your friend don't both send a snap within 24 hours, you’ll lose the fire emoji — and, of course, your Snapstreak.
The hourglass emoji will appear to warn you that your Snapstreak is going to end soon.
You and your friend have to send each other a snap — not a chat — in order to keep the streak alive.