Purchasing 'Skills'

[kharaa]

My question is, is there any way to purchase or 'train' a skill, so that it becomes 'trained/class'? For example i'm playing a drow gunslinger in a campaign, and i'm playing with the musket master archetype. So i've been kind of playing him like a sniper, one that sits in the back and picks people off.. but one of my class skills isn't stealth, I was wondering if there was a way to make this a class skill or make it so it's trained, or do you just dump ranks in to it and not worry about the +3 trained bonus?

Thanks.

[Robespierre]

look into traits.

[Xzaral]

Also cosmopolitan feat. (Actually, won't work for stealth, but still worth mentioning, I think).

[Morgen]

Skill Focus also provides roughly the same bonus as getting the skill as a class skill, even more so at 10+ ranks.

Or the +2/+2 feat, whatever that one is that covers stealth. Sneaky? That grows to +4/+4...

[Bob_Loblaw]

You can also multiclass. Sneak attack with a musket could be fun.

[Talonhawke]

Yeah sniper rogue with the right backup and touch attack can get good fast.

Hard part is looking for a way to get ranged sneak attack. If your GM allows you to use 3rd party stuff there is a feat that lets you flank at range.