Once everyone that you have invited to the limo bus has arrived and you are ready to take them onto the bus so that they can start partying, there is a pretty good chance that a rather odd scenario would start to occur. Everyone would just be standing there, not sure of what they should do or how they should do it. These awkward situations are quite common, and they are mostly the result of people not quite knowing what social skills would be required of them over the course of this party that they are now going to start immersing themselves into.
Awkward though this silence may be, getting rid of it is actually a lot easier than you might realize. All you need to do is think of a few ice breakers that could go with the vibe of your Tampa limo bus and have people laughing and talking in no time. People just need the chance to loosen up a little, and if they see that there is at least one socially competent person around them then they would probably not feel as awkward as they had been feeling before.
The truth of the situation is that no one really knows how to act in these kinds of situations. It is up to the host, which is you, to give people the chance to let their hair down. Some nice ice breakers can often involve things like telling a joke or asking people their names. Getting people to talk is the truly important thing here, and once you manage to do that then everything else would just end up falling into place with a great deal of ease and simplicity.