There is no specific dress code. A person can put any kind of dress. Traditionally, you can find men wearing shirts and trousure while women wearing Salwar and Kamez.
Sikh people wear clothes just like any other.
Sikh people have long hair. They never cut them. So, they wear turbans
Clothes or nothing at all.
Sikh girls don't have to wear a Keski, but it is highly advised.
Less orthodox Sikhs tend to dress up in fancy clothes orthodox Sikhs will wear traditional Sikh dress. This is likely to be exactly the same as they would normally wear to the gurdwara (Sikh place of worship). Sikhs are encouraged to live simply and dressing up on Guru Nanak's birthday is unnecessary. God is not impressed by the clothes you wear.
Sikh women don't wear a bindi. Hindu women wear a bindi.
There is no such thing as a "SIKH necklace" that is mandated by the religion. Some men and women do wear a necklace with the Sikh insignia but it is not required by their faith.
Sikh women can keep their hair long to show they are Sikh and by choice they can also wear a Patka. They can also wear Sikh symbols such as the Khanda, Khesh, Kirpan, etc.
true sikh brides do not wear red they wear blue or orange , the people who wear red are punjabis not sikhs
Sikh women don't have any certain restrictions to what they can or cannot wear around the house, or in general. There is not a large difference in attire between the two. Many Sikh women who have more Indian roots may wear a traditional Punjabi suit around the house. As far as head coverings, Sikh women can cover their heads with a chunni (or head scarf) or wear a dastaar (turban). Again, not all Sikh women do this, but it is common and a popular option.
They wear winter clothes
no they did not wear clothes