: Switch between all three characters (Michael, Franklin, and Trevor) and invest all their available cash into Tinkle (TNK) on the BAWSAQ exchange before triggering the event.

: After dropping him off, wait roughly 12 to 24 in-game hours (or use the "sleep" mechanic to advance time) until the stock's return reaches roughly 33% before selling. Pro-Tip for Maximum Profit

: Drive to the Great Ocean Highway in Banham Canyon. You will find a businessman with a broken-down car who needs a ride to the airport.