Acessing function in another script C# - just dont get it - code shown

Hello,
I am new to c# and have done lots of reading etc but just cant get my head around this.
I have a script on an object ( scriptA ) and I have another on another object (scriptB).
I am trying to call a function from scriptA in scriptB.
Basically I have a trigger that when collided with needs to call the function on the other object in order to make things happen :slight_smile:
below is a stripped down version of my 2 scripts. Any help would be greatly appreciated.
If I hover over " other.StartTheFlock(); " in visual studio I can see the reference in the other script.
I think I have to use getcompoment but I am mixed up with how to use it.
First my trigger code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class triggerSpawn : MonoBehaviour {

     public globalFlock other;

    void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.tag == "Player")

            StartFlockingCode();  

    }

    void StartFlockingCode()
    {
        other.StartTheFlock();        // function in other script to call
    }   

}

My spawner code:

using UnityEngine;
using System.Collections;

public class globalFlock : MonoBehaviour {

	public void StartTheFlock () 
	{
		//code here to call from trigger script//
		{
}

HI,
thanks for the response :slight_smile:
I have solved the issue.
I perhaps didnt explain too well but I didnt set the script reference in the inspector as explained here.
I must remember to not skip over stuff.