C# Talk.cs

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

public class Talk : MonoBehaviour
{
public GameObject panel;
public Text txt;
// Start is called before the first frame update
void Start()
{

}

// Update is called once per frame
void Update()
{

}

void OnTriggerEnter(Collider col)
{
    panel.SetActive(true);
}

}