What hasn’t been demonstrated, at least so far, is that these vaccines prevent you from getting infected entirely. We‘ve shown that these vaccines provide neutralizing immunity, where the virus will no longer severely harm you, but not necessarily sterilizing immunity, where you cannot pass the virus onto others. Additionally, it isn‘t known how long your immunity will persist. This, very importantly, means that you still need to wear a mask, wash/sanitize your hands, and practice social distancing — and to be rigorous about doing them all — for now.