Have you noticed a little update in Messenger App? Well while chatting with my gf I sent her a love sticker and I noticed a some love bubbles coming up. That was pretty cool. Check this screenshot and you will have a good idea on this.
We have tried for with other stickers but the bubbles are coming only for love stickers. If Facebook push this type of animations in every emotions the chatting will be more lively. Facebook trying to push so many new updates. Last time they had introduced Gif messages.