Click

import * as PIXI from 'pixi.js';

const app = new PIXI.Application({ background: '#1099bb', resizeTo: window });

document.body.appendChild(app.view);

// Scale mode for all textures, will retain pixelation
PIXI.settings.SCALE_MODE = PIXI.SCALE_MODES.NEAREST;

const sprite = PIXI.Sprite.from('https://pixijs.com/assets/bunny.png');

// Set the initial position
sprite.anchor.set(0.5);
sprite.x = app.screen.width / 2;
sprite.y = app.screen.height / 2;

// Opt-in to interactivity
sprite.eventMode = 'static';

// Shows hand cursor
sprite.cursor = 'pointer';

// Pointers normalize touch and mouse (good for mobile and desktop)
sprite.on('pointerdown', onClick);

// Alternatively, use the mouse & touch events:
// sprite.on('click', onClick); // mouse-only
// sprite.on('tap', onClick); // touch-only

app.stage.addChild(sprite);

function onClick()
{
    sprite.scale.x *= 1.25;
    sprite.scale.y *= 1.25;
}