This video shows you how to use basic remote events.
Code 1:
rep = local rep = game.ReplicatedStorage
Print("RemoteEvent in 5")
wait(1)
Print("RemoteEvent in 4")
wait(1)
Print("RemoteEvent in 3")
wait(1)
Print("RemoteEvent in 2")
wait(1)
Print("RemoteEvent in 1")
wait(1)
rep.RemoteEvent:FireSever()
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Code 2:
rep = local rep = game.ReplicatedStorage
rep.RemoteEvent.OnServerEvent:Connect(function(player)
local part = instance.new("Part")
part.Parent = game.Workspace
end)