Here are three ways to get rep:
1. Post interesting/Funny/Helpful Stuff instead of Boring/Rude/Non-Helpful Comments.
2. Posting status updates often get 2-3 likes.
3. Probably the most effective way to get rep is by posting a great looking craft and saying: You get a copy of it if you like this post!
I hope this was helpful!
Have a nice day!