Here are some ways to improve your karma score:
1: Leave nice comments on art and memes.
2: Every day, check if there are free award boxes. If there is one, give the award to a post that deserves it and you will earn awarder karma.
3: Help out with a meme themed comment thread. (They're all over reddit and everyone thinks they're hilarious so you'll get a lot of upvotes from that) An example: https://www.reddit.com/r/Brawlstars/comments/lkz7s0/vault/gnmyhmo/?context=8&depth=9
4: Post some stuff
hope that helps
