I normally roleplay my characters, so I tend to avoid combats with most characters if possible. But during the "A Bigger Fish" I got the "Ring of the Marksman" after trying the fight resolution.

Its stats are really as good as they look? And my playing character being a ranged one it looks even more useful. It worth to keep the ring or it's rendered obsolete by other better objects later in the game or perhaps it isn't really that useful?

You can pick pocket the ring from Shrimp before talking to him and finishing the quest. Its a pretty sweet item for a ranged character - +1 pen and +4 to hit with ranged weaons.

How can I do that? When I try the game always says "you cannot pickpocket chars when you are observed".

You need higher stealth and/or a sneakier approach. When your selection circle is filled with red you are detected. Anything less and you can attempt a pickpocket. Generally you try to start somewhere nobody has eyes on (empty circle) and sneak up from some direction they aren't looking, and depending on your stealth skill and their detection you may get next to them before you go full red.

 

You'll also need some sleight of hand skill to pickpocket though.

Or if everything else fails, you can always use the conversation exploit - put a party member in stealth, position them next to the target, initiate conversation with the target with another party member, wait for the red circle to be gone, end conversation, hit pause real fast before red circle is back, voila. Works in shops too. 

Or if everything else fails, you can always use the conversation exploit - put a party member in stealth, position them next to the target, initiate conversation with the target with another party member, wait for the red circle to be gone, end conversation, hit pause real fast before red circle is back, voila. Works in shops too. 

Yes! I love this exploit! 

 

Me and Serafen have a routine going. My Watcher distracts them while he pickpockets and steals everything not nailed down. 

You can also have your party members talk with npcs that don't engage in conversations (and just make a random comment). Most of them will turn to the direction of your party member and you can sneak easier while they are not looking at you.