As a seller how you might get an exchange and trusting relationship with each client?

i think the good dealing is the source to bulid a good relarion between the seller and the client

By me everything should start from the roots with each client

Dealing with customer patience and respect . I try to access the customer to think and answer all the questions needed to understand . dealing with the utmost taste, even if the customer does not deal this way

You should build a good rapport & continue providing good and honest services even beyond your time of work.

continues improved services

On our superficial environment,  sincerity matters. And your clients can easily fee that. 

Just provide the specific benefit package to the clients wht they are targeting n there mind.

Rapport know his/her needs and wants and you have guts move him/her by your words and story so that he /she will be comfortable with you and can entrust you with anything when he /she is inside your store and possible to be your loyal customer.