I have no idea how to animate, can I have some help?

I am trying to make a script where my character stretches out his right arm(I don't mean physically stretch, just raise) when I press e, and then turn my arm light blue and freeze someone on contact. How would I go about that? I'm really new to making scripts and I have no clue how to animate. So far, I have

print "First attempt at a script" local player = game:GetService("Players").LocalPlayer local char = player.Character wait()

I'm not asking you to write the entire script, just help me with the animating part. Thanks very much