You will have a certain point range (mine is 18-23, for example) and you’ll decide what foods you can eat to stay within that range.
For example, a medium sized apple is 1 point. A piece of bread is 2 points typically. A cup of pasta is 4 points. You get the idea. You’ll also want to make sure you’re a well-rounded eater: 5 fruits/veggies per day, enough calcium, enough water, etc.
The meeting: First half hour is the weigh-in process. You’ll pay your meeting fee, and step on the scale. The person weighing you will NOT say your weight, but will write it down for you. Once you finish the weigh-in, you have a seat and wait for the meeting to start. The meeting is 30 minutes, and each week there is a specific topic (holiday eating, dining out, positive thinking, starting an activity program, etc.). The meeting will also contain celebrations of people who reach certain milestones in weight loss, as well as an opportunity to ask questions and ask for help.
The first meeting you join, you should plan to stay after for another 15-20 minutes of orientation. There you will learn how to calculate points, how many you should have, yadda yadda.
On line versus in meeting. These are designed to be two separate programs. If you join a meeting in person, you can also sign up for eTools, which allows you to journal on line, look up recipes, etc. If you join the WW Online, that’s supposed to be instead of going to physical weigh-ins. I believe the Online program also allows you the functions of eTools. You can check out www.weightwatchers.com for a preview of that stuff.
I feel the benefit of in person meetings is the accountability of stepping on the scale (primarily), and also the opportunity to share tips and ideas with others. I can read about it all I want, but if I’m in the same room with other people who tell me what works for them, it sinks in better.
Of course, YMMV.