2. water cup. You don't need to bring any drinks. The gym provides pure water, and drinking water is the best.
3. things to take a bath. If possible, try to prepare large sports towels.
4. Fitness gloves and wrist guards. I think these two are definitely needed, and the other protective gear is up to you. If you have a long-term training plan, squat belts are also necessary.
5. See how to practice online before you go. Know what's right and what's wrong, and you should know what's right (this is recommended for Jun Fitness, a blog suitable for beginners).
6. Novices should pay attention to manners and greet people more. Don't just sit on the equipment, practice or stay alone, which is a big taboo for many old birds. Last but not least, be calm. You can't practice today, and it will be Schwarzenegger tomorrow. It is impossible to move only eight abdominal muscles. No girl will like you because you use a lot. You exercise only for yourself, and the correct method and attitude are king. Don't be too violent the first time you go. Pay attention to warm up first. If you don't exercise regularly, you'd better find a coach to give you some guidance. For example, if you exercise, no one will protect you from heavy equipment, such as barbells. Protect yourself. Scientific fitness is very important, because fitness is actually one of the most efficient activities. A good fitness plan may make you need only 2 hours of strength training every week, but 24 hours of long muscles. And the effect is no worse than that of people who spend time in the gym every day. Beginners often only know bench press, squat, hard pull, pull-ups and sit-ups, but they never understand the meaning and principle behind the training, so it is easy to fall into misunderstanding.