.

Regarding this, how do you stop an Enderman from teleporting?

Endermen have a teleporting range of 32 blocks. Make every part of the tunnle 2 blocks high, for the enderman can't teleport to any place that is less then 3 blocks high (as in tunnel size). Make sure the cage is 3 blocks for the enderman to wander around. And don't let any other cage exceed the 2 block high opening.

Also Know, what are Endermen saying? The noises are actually a person saying “Hi” and “What's Up” backwards and distorted. The enderman's behavior has now been modified slightly.

In this regard, how do you stop Enderman?

Put vines on the outside of your house. Instead of grabbing blocks from your house, they will grab the vines, and the vines will just grow back. It's a self-preserving defense mechanism against endermen. Last of all: don't look at them so that they won't teleport inside your house!

Does smite affect Enderman?

Smite. Smite is an enchantment applied to a sword or axe, increasing the damage dealt to undead mobs.