You can use your psionic skills with less chance of anyone noticing your activities.
Prerequisites: Psionic Ability, Wis 13+.
Benefit: When using a psionic skill you can “mute” its psionic signature. Characters using the Psionic Sense skill cannot detect your skill use, nor can its use be detected later using Psionic Sense.
Strain: The subtle skill costs double the normal amount of strain (or 1 if the normal strain is 0).