Test.cs

using Microsoft.MixedReality.Toolkit.Input;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Test : MonoBehaviour, IMixedRealityTouchHandler
{
    void Start()
    {

    }
    public void OnTouchStarted(HandTrackingInputEventData eventData)
    {
        Debug.Log("hi");

    }

    public void OnTouchCompleted(HandTrackingInputEventData eventData) { }

    public void OnTouchUpdated(HandTrackingInputEventData eventData) { }
    // Start is called before the first frame update

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

    }
}