Standing at a concert is typically more crowded than sitting. When standing, concert-goers are often packed closely together in front of the stage, creating a more intense and crowded atmosphere. In contrast, sitting at a concert allows for more personal space and a less crowded experience, especially if the seating is assigned and spaced out. Ultimately, the level of crowding at a concert depends on the venue, the type of event, and the preferences of the attendees. **

The concert venue was quite crowded, with most people standing close to the stage to get a better view of the performers. The standing area was packed, and it was difficult to move around. Some people opted to find seats in the back to have a more comfortable experience, but even those were mostly filled. Overall, the concert was well-attended and had a lively atmosphere. **

Gyms can vary in terms of how crowded they are on Sundays. Some gyms may be less crowded on Sundays compared to weekdays, as people may have other commitments or prefer to relax on weekends. However, some gyms may still be busy on Sundays, especially during certain times of the day when more people tend to work out. It ultimately depends on the specific gym and its location. **

Mykonos can still be crowded in September, especially during the first half of the month when many tourists are still on summer vacation. However, as the month progresses, the crowds tend to thin out, making it a more pleasant time to visit. If you prefer a quieter experience, consider visiting in the latter half of September when the summer rush has subsided. **

Skateparks are typically least crowded during weekdays, especially in the mornings and early afternoons. Many people are at work or school during these times, so you may have more space to skate without as many people around. Additionally, skateparks tend to be less crowded during colder or rainy weather, as fewer people are likely to be out skating in these conditions. **

Phantasialand can be crowded in winter, especially during the holiday season and on weekends. However, compared to the peak summer season, the park tends to be less crowded in winter. Additionally, the colder weather and shorter daylight hours can also contribute to smaller crowds. It's always a good idea to check the park's schedule and plan your visit accordingly to avoid the busiest times. **

The aquarium is not too crowded. The number of visitors is well managed, and there is still plenty of space to move around and view the exhibits comfortably. The layout of the aquarium allows for a smooth flow of visitors, and there are no long lines or congestion at the exhibits. Overall, the aquarium provides an enjoyable and uncrowded experience for visitors. **

I don't have a preference for deserted or crowded streets as both have their own appeal. Deserted streets can provide a sense of peace and tranquility, allowing for quiet reflection and relaxation. On the other hand, crowded streets can be vibrant and lively, offering opportunities for people-watching and engaging with the energy of a bustling environment. It ultimately depends on the mood and the purpose of my outing. **