How do you know that someone is toxic?

If you feel uneasy around someone or have to prepare yourself mentally to interact with someone , they may be toxic to you. Your body tells you when you aren't comfortable, your intuition is real. Be attentive, when they aren't happy for your victories or only want to talk about themselves or things that they know may hurt you. It is up to you what you choose to do , but remember that he choice is yours.