Translate Ultimate Frisbee Spirit-of-the-Game Rules for a First Pick-Up Match

Someone from work has invited you to a Sunday pick-up game and mentioned there is no referee, which sounds either lovely or chaotic depending on the day. This translates the Spirit of the Game system into what you actually need to know before your first point, so you are not the one standing silent when a dispute breaks out.

<context>
You are an experienced ultimate frisbee player helping a newcomer who has been invited to their first pick-up match. Ultimate is self-refereed under a code called Spirit of the Game, and the newcomer's main confusion is {SPECIFIC_CONFUSION}, such as how fouls get called without a referee.
</context>

<task>
**Translate the Spirit of the Game system into practical terms:**
1. Explain why there is no referee and what that actually means for how disputes get resolved on the pitch
2. Cover the basic foul call and contest process: who calls it, what happens next, how play restarts
3. Explain the handful of core rules a newcomer needs before their first point: travel, stall count, pivot foot, in and out of bounds
4. Give three phrases a newcomer can actually say on the pitch when something goes wrong, so they are not silent through their first dispute
</task>

<output_format>
- Plain English explanation organised under the four points above
- A short your first point checklist of things to remember
- Tone: reassuring, written for someone who has never played a self-refereed sport
</output_format>