When you get that gut feeling and hear that voice in your head telling you something's not all right. Don't ignore it. Being self-aware is the first line of defence against the unknown and unexpected.
Pay attention to your own levels of moderation and recognize where you are (both internally and in terms of your immediate surroundings). Remember to treat yourself as you would your own friend who you care for.
There's an insistence on getting revved up for the experience. We tend find that sort of thing socially rewarding. But another skill, just as useful as getting yourself and others hyped, is being able to de-escalate the situation when the time calls for it. "Don't be kak. Be lekker."
Sometimes saying and doing nothing is a sure way to bad circumstances arising. This is especially true when you sense something is not cool. Speak up or reach out to somebody, even the nearest person around you if not a friend.