Real contractions?

Sarah • tml. 💍 | klg. 👑 | ejl. 👼🏼 | hal. 🌈 | fmcl. 🦁

How can you tell when you’re having real contractions? According to my app, I’m having them every 4 minutes but they don’t hurt, they feel like braxton hicks.

What are the tricks to knowing for sure? I’ve heard like laying down or drinking water, anything else?