If you see something you like on here, don't be scared to give it a favourite ⭐ !
If you really like something, you might want to also boost it 🔁 (which shares it with your followers).
There is no algorithm on here, so you can like and share whatever you want without any additional side effects.
Your timeline on here is entirely in your direct control, it isn't going to push stuff at you or hide stuff just because you liked or shared something.