Learn Swedish, and mirror the communication style of the softly and calmly spoken Swedes
One of the key characteristics of Swedish culture is that Swedes are egalitarian in nature, humble and find boasting absolutely unacceptable. When welcoming Swedish customers, ensure that you reflect their communication style. When speaking, Swedes speak softly and calmly. You need to do the same, and focus on the facts for your products without embellishment.
Scheduling and planning are sometimes mentioned as part of the Swedish ‘way of life’. As a general rule spontaneity and improvisation are unusual, and you will need to make sure that you similarly organized, but more importantly, allow time for decision making when you are welcoming them to your store!