Moving an NPC slightly short of a destination

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#1

Hello! I have a simple question. I want an enemy to run after a player but stop once it gets close. I am currently using MoveTo and trying to move to the position of the targets root part. The issue is I want to to work from all angles.
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Currently it is trying to run inside of the player.
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#2

You first need to get a LookVector from a CFrame of the NPC looking at the player. Then you call MoveTo, moving the NPC to the player while subtracting a multiple of the LookVector.

local waypointSpacing = 4 -- how many studs back the NPC will stop before the waypoint
-- get the required info
local playerCF = randomCharacter.PrimaryPart.CFrame
local npcPos = NPC.PrimaryPart.Position
-- get the look CFrame
local lookCF = CFrame.lookAt(npcPos, playerCF.Position)
-- subtract the lookvector from the target cframe
local moveTarget = playerCF - (lookCF * waypointSpacing)
NPC.Humanoid:MoveTo(moveTarget.Position)
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#3 
local stoppingSpace = 2
local offset = target.Position - NPC.Position
offset = offset - (offset.Unit * stoppingSpace)

humanoid:MoveTo(NPC.Position + offset)

the smaller stoppingSpace is the closer the npc will move to target

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