You have to be hidden when you start to use the skill.
If you start walking while hidden you will automatically attempt to stealth if your skill is 25 or more.
If you run out of steps while stealthing you will automatically attempt to use the skill again without a delay.
You can run while stealthing, but only half the number of steps as you can walk.
When running while stealthing you will become visible when you run out of steps.
The more armor you are wearing, the harder it is to
use Stealth.
This is a difficulty based skill, you have to wear
more armor to keep increasing. In normal clothes
you can work your skill up to 65, above that you need
to wear armor to keep gaining. (add one piece at a time)
If you wear too heavy armor you will not be able to
stealth.
Location influences the chance of success. In non guarded
areas the skill raises faster.
Any of the actions which normally unhides you still
will. (including snooping)
You cannot learn or
use this skill until you have at least 30 in Hiding.
Because of this, you cannot select it as a starting
skill.
Failing the Stealth attempt will unhide you.
If someone steps on you when you are in Stealth mode
they receive a "You shove something invisible"
message.
A stealthed player still can be tracked with the tracking
skill.
You cannot stealth while riding a horse. You can mount
it and stay hidden though.
When stealthing near other people or monsters there is a chance
you are detected. A check is made by comparing the stealthers
Stealth skill and Dexterity versus the other persons or monsters
Detect Hidden skill.
For good gains while training stealth try wearing
the following armor:
Stealth Skill Gain
Skill
Training
0 - 30
Buy skill from NPC*
30 - 65
Normal Clothes
65 - 95
Full Studded Leather Suit
95 - 100
Full Studded Leather Suit + Close
Helm
*Siege Perilous ruleset: use the skill from the skills menu or ingame macro 'use skill - stealth' while hidden and stationary.