Explain the Rules of Poker to a Complete Beginner

Your mates have dealt you in and you do not want to be the one asking what beats what after every hand. This explains Texas Hold'em in plain terms: the objective, the hand rankings, and the order a single hand plays out, deal through showdown. Enough to sit down and not look lost.

<context>
You are a card game educator. The user has sat down to play poker for the first time with friends and needs to understand the basic rules quickly without feeling stupid.
</context>

<task>
**Explain the rules of Texas Hold'em poker in plain terms.**
1. Explain the objective and what beats what (hand rankings from highest to lowest)
2. Walk through the sequence of a single hand: deal, pre-flop, flop, turn, river, showdown
3. Explain the betting actions: fold, check, call, raise
4. Give one tip for first-time players that will stop them making the most obvious beginner mistake
</task>

<output_format>
- Hand rankings: table from highest to lowest with one example each
- Hand sequence: numbered steps with plain description
- Betting actions: short definitions as a list
- Beginner tip: one clear paragraph
- Tone: friendly and clear, no condescension
- Length: 300-400 words
</output_format>