Encounter Reactions (AD&D DMG, p63)
01 (or less)-05 [Violently hostile, immediate attack]
06-25 [Hostile, immediate action]
26-45 [Uncertain but 55% prone toward negative]
46-55 [Neutral - uninterested - uncertain]
46-75 [Uncertain but 55% prone toward positive
76-95 [Friendly, immediate action]
96 (or greater) [Enthusiastically friendly, immediate acceptance]