Game Informer have released some new details in their November issue - the focus being, gangs. They gave a detailed description of how territory can be won by different groups (This is old information, see the P2 summary from last month). They did however, tell us how the gang recruitment system works:
Approach pedestrians sporting the OGF colours, and target them with the R1 button. You are given an option, select 'up', or 'down' on the D-Pad, and if the recruit returns your offer with a gang symbol, they're now a part of your team. The new system allows you to target your recruits with R1, and you have the ability to make them defend you, attack opponents, or simply follow you.
Thanks to GTAGaming for the news.