**FIRST EQUIP AND USE A RANDOM ROBLOX EMOTE (can be a free emote too) THEN  AFTER SOME SECONDS USE THIS ANIMATOR REMOVER (so that the animation wont look weird to other players)**:
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 local Animate = game.Players.LocalPlayer.Character.Animate
Animate.walk.WalkAnim.AnimationId = "http://www.roblox.com/asset/?id=0"
Animate.run.RunAnim.AnimationId = "http://www.roblox.com/asset/?id=0"
Animate.idle.Animation1.AnimationId = "http://www.roblox.com/asset/?id=0"
Animate.idle.Animation2.AnimationId = "http://www.roblox.com/asset/?id=0"
Animate.jump.JumpAnim.AnimationId = "http://www.roblox.com/asset/?id=0"
Animate.fall.FallAnim.AnimationId = "http://www.roblox.com/asset/?id=0"
Animate.climb.ClimbAnim.AnimationId = "http://www.roblox.com/asset/?id=0"
 
game.Players.LocalPlayer.Character.Humanoid.Jump = false
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**THEN AFTER EXECUTING THE ANIMATOR REMOVER, EXECUTE THE SCRIPT BELOW**:
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local Animate = game.Players.LocalPlayer.Character.Animate
Animate.walk.WalkAnim.AnimationId = "http://www.roblox.com/asset/?id=102583205412686"
Animate.run.RunAnim.AnimationId = "http://www.roblox.com/asset/?id=102583205412686"
Animate.idle.Animation1.AnimationId = "http://www.roblox.com/asset/?id=102583205412686"
Animate.idle.Animation2.AnimationId = "http://www.roblox.com/asset/?id=102583205412686"
Animate.jump.JumpAnim.AnimationId = "http://www.roblox.com/asset/?id=102583205412686"
Animate.fall.FallAnim.AnimationId = "http://www.roblox.com/asset/?id=102583205412686"
Animate.climb.ClimbAnim.AnimationId = "http://www.roblox.com/asset/?id=102583205412686"

game.Players.LocalPlayer.Character.Humanoid.Jump = false
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**NOW UR DONE THE ANIMATION WILL NOT LOOK STIFF AND U CAN ALSO USE THE WALKFLING INFINITE YIELD COMMAND IF U WANT TO :D.**

**AND MAKE SURE TO EXECUTE THE ANIMATION REMOVER AND NYAN CAT ANIMATION MANUALLY ONE AT A TIME DO NOT PASTE IT ALL AT THE SAME TIME INTO UR EXECUTOR.**