PF Cohort help

My gunslinger is about to hit level 7 and I've been greenlit to take the Leadership feat and get a Gun Squire cohort.

The idea is to utilize the squire as a means to reload weapons and pass them to my character in combat, and otherwise be a nuisance to my opponents.

I've settled on a sneaky Tengu as the cohort, but would like some suggestions for feat/skills and build ideas.