Sorry but this question is completely different. Please take a look at the video carefully.
The technique is exactly the same. Each message must be a separate layer. The anchor point of each message is set so any scaling you animate will originate from that point and the position of each layer is animated.
As I said before, there is no plug-in or effect that you would use here. It is just position and scale animation. It is very difficult to get it to look right, but if you have a sample video you can take timing cues from that video.
Are you new to AE? Do you have experience animating position and scale? These are the most basic of AE skills that you need to develop. It takes time and experience to make create pleasing movement, especially when you want things to bounce or bulge. If you are experienced with expressions or at least acquainted with them you can use the link I posted in my first reply to get some good expressions.
Sorry but this question is completely different.
Nothing different at all. Both your questions can be answered with some basic keyframing as Rick already said... It's just gonna take some tweaking to get it to look right...