Helpful Halfling Feat 9
Source Pathfinder Lost Omens: Character Guide
When you aid a friend with a task, you find many ways to help and avoid interfering. On a critical success to Aid, you grant your ally a +3 circumstance bonus if you have expert proficiency in the skill (rather than +2), and you grant your ally a +4 circumstance bonus if you have master proficiency (rather than +3). If you roll a critical failure on a check to Aid, you don't give your ally a -1 circumstance penalty to their check.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
HalflingA creature with this trait is a member of the halfling ancestry. These small people are friendly wanderers considered to be lucky. An ability with this trait can be used or selected only by halflings. A weapon with this trait is created and used by halflings.