Dear Marie,
If you have Chinese guests, it would be a nice gesture if the host can wear Red. As this is considered a very auspicious colour for this occassion.
If you country allows the use of fire crackers, this is a tradition, we Chinese use to ward off evil and usher in the new year.
Furthermore, the pathway will be pathed with the remains of red paper (belonging to the fire crackers). If u are not allowed to do so, please don't do so.
If you have give exchange, never, never, give a w