Legitimate Business is a Smuggler class mission. It introduces you to your trainer.
Speak with Tweeta in Fort Garnik to get this mission, then check your quest log:
Legitimate Business
A local named Tweeta has advisd you to go see Wentell in Fort Garnik. She says that he's the man you want to see if you want to learn the tips and tricks you'll need to stay alive on Ord Mantell. Speak to Wentell in Fort Garnik
Your task is to report to Wentell.
Wentell is located in the market zone, towards the northwest area of the market. Go and interact with him to talk to him.
This is a very easy mission to complete, once you talk to Wentell Pron, you will get credits and experience points. If you do not see your reward after speaking to Wentell Pron, check the top right corner for a message that says "Pending"
You will be coming to speak to Wentell Pron often, as you level up and gain access to new skills. In addition to purchasing completely new skills from him, he will also upgrade your existing ones.
When you speak to him, you will see a list of available skills. You can change filters to show only skills which you are high enough level to purchase, or to show all skills. Also, whenever you level, you can open your skills panel to check if you are eligible for any new skills or upgrades.
Each skill costs a small amount of credits, but they are pretty cheap and you should get all available skills. For example, if you are level 4 and you talk to Wentell for the first time, you should see the following skills avaiable:
Blaster Whip - Level 2 - 10 Credits
Sabotage Charge [Rank 2] - Level 3 - 10 Credits
Thermal Grenade - Level 3 - 10 Credits
Charged Burst [Rank 2] - Level 4 - 40 Credits
Dirty Kick - Level 4 - 40 Credits
Left click or hover over a skill to see more information and stats. Right click on a skill to learn it.