Enemy Patrol - Random Walk

I have my AI script already and its fairly simple, I wanted to add a code where the enemy can look at its own position and every couple seconds walk a little bit in a random direction… I just dont know how to do it, way points and paths wont really work for my game as im going to be respawning and killing these mobs so I wanted to make it simple!

THANKS IN ADVANCE

using UnityEngine;
using System.Collections;

public class EnemyAI : MonoBehaviour {
	public Transform target;
	public int moveSpeed;
	public int rotationSpeed;
	
	private Transform myTransform;
	
	void Awake() {
		myTransform = transform;
	}
	
	// Use this for initialization
	void Start () {
		GameObject go = GameObject.FindGameObjectWithTag("Player");
		
		target = go.transform;
		
	}
	
	// Update is called once per frame
	void Update () {
		
		float distance = Vector3.Distance(target.transform.position, transform.position);
		
		Debug.Log(distance);
		if(distance > 10) {
		animation.Play("idle");
		}
		if(distance < 10) {
		Debug.DrawLine(target.position, myTransform.position, Color.red);
		
			//look at target/rotate
			myTransform.rotation = Quaternion.Slerp(myTransform.rotation, Quaternion.LookRotation(target.position - myTransform.position), rotationSpeed * Time.deltaTime);
		
			//move towards target
			myTransform.position += myTransform.forward * moveSpeed * Time.deltaTime;
			animation.Play("walk");
	}
	}
}

just use random

you can use random.unitcircle to get the x and z portions

then multiply that by a random number again which is from 0 to X where X is the max distance to walk before checking again.

Finally add that to current mob position to get the final position

so

vector2 Temp = random.unitcircle;
TempDistance = random.range(0, 10);
Temp = Temp * TempDistance;
vector3 FinalTemp = new vector3(Temp.x, 0, Temp.y);

MovePos = mob.transform.position + FinalTemp;

//move mob to movepos