Visitor or Business travelers should be aware of the shorter office/working hours during Ramadan when having business meetings with Muslims. Best to schedule meeting in the morning or before subset so you can enjoy Iftar Dinner with them.
Shopping Centers, Private and Government office hours change during Ramadan.
You will not allowed to eat in Cafes and restaurants. However you can avail takeaway during Fasting hours.
Dress code during Ramadan is more restrained. Legs, shoulders, and arms should be covered. In stricter quarters, even the wearing of jewelry is frowned upon, though this is not universal.
Alcohol outlets (if any) usually remain closed throughout the month. In Dubai, hotel bars open in the evenings (after Iftar) but with no live music.