[header] How to pick your nose inconspicuously [title] Position the index finger of the opposite-side hand alongside the exterior of the obstructed channel. [title] Nonchalantly slip the thumb as deep as necessary into the nostril. [title] Using the thumbnail, delicately clamp onto the dried mucous mass. 
[title] Slowly withdraw the thumb and its payload from the nostril. [step] At this step in the process be particularly vigilant for any trailing mucous which might be attached to the payload.