To get new Clients, you need to raise your Respect, that means free samples, successful Sales, and graffiti in areas that are low on Respect.
To deliver free samples (usually 1g, there's an easy mix in Mixing Guide) just look for people walking around the map with a question mark above their head and hand them the sample.
Eventually your Client will ask to be a Dealer. You do not have to accept, but it's recommended if you can afford to deliver large Orders at once.
If a Client overdoses you will receive a notification. The Client will be moved to a list at the bottom of shadyComm, and a spot will open up for a new one.
||For writing most of the content on this page :D (Thanks)