Very simple. Post an animated image (GIF) of boobs, tits, bosoms, knockers or whatever you call breasts being revealed.
<video width="436" height="228" controls autoplay loop><source type="video/webm" src="http://a.pomf.se/wqwejx.webm"></video>
That's the idea. In .gif format like this though.
I have it in GIF format but for alot of stuff I've switched over to WEBM because it's literally 10x smaller (page loads faster when you have alot of them)