Portugal's social order is fundamentally oriented toward family, which means that the respect of elders and hierarchy is very important over here. Portuguese people are also characterized by having a keen eye for details. They wouldn't take a hasted decision. They will think about it for a long time, so don't rush them and follow their pace.
The same thing for meetings, they focus more on knowing the person first and trust them so they can carry a business deal with them. Punctuality is expected from foreigners related to a business meeting, however not anticipated from nationals.
Working days are from Monday to Friday, from 8:30/9:00 a.m to 6:00 p.m. Some of the businesses are open on Saturday from 9:30 a.m to 12:30 p.m
Appointments should be made in advance around two weeks before the scheduled day. Avoid making any appointment during August and big holidays like Christmas and new year's eve.
When meeting a person, try to give a firm handshake while stating clearly your name and keeping eye contact.
Fashionable elegance is appreciated by the Portuguese since they feel that clothes reflect your status and success.
Portuguese people love long lunches and dinners. You have to be careful to distinguish between a social and a business meal. Try to wait until the person you are meeting raises the business subject so you can discuss it.
If you are invited to a colleague or a client place, don't forget to bring a gift - chocolates, flowers or candies. If you want to bring wine, try to investigate which kind of wine or brand does the host prefers.