Welcome to Pathfinder Anaclêto. You've asked about several things, but hopefully this helps as much as all the rest of the posts.
..common strategy..as a secondary combatant in a fight, Rogues using what is around them to their advantage is a plus. That could be terrain to move into position for flanking, or dropping a chandelier or rock onto the bad guy/monster. The Barbarian is likely to wade directly into combat, the rogue fighting cleverly is great.
..roleplaying tips..personality quirks or favorite "stuff" add fun flavor to the game. A fear of snakes, or must have their coffee in the morning or a favorite beverage is requested at every tavern, a facial tick or scar, or being a half orc maybe your character thinks some odd foods(to humans) taste really good. Maybe part of the 8 CHA is your half orc talks to an invisible friend. What we see as weaknesses or oddities in real life can make for very memorable characters at the game table. Non-combat situations are moments where a rogue can shine as well with skills.
..names..I very much like what SmiloDan said above about names. I'd add that sometimes having a nickname can be fun too. Depends on the character.
..use magic device..This is indeed a very good skill for a rogue, and broadens a characters usefulness--particularly in unexpected moments.