Thinking about Dialogue

My partner and I went to a window upstairs where we saw two girls who were clearly friends sitting and talking together. We listened to the conversation for about 7 minutes. At first we couldn't hear what they were saying, they were pretty quiet and mumbling. It felt awkward because we didn't try overly hard to be subtle. When we saw them we went straight to note taking and we assumed it felt out of the blue. When we sat down we noticed that they stopped talking for a moment and started mumbling. It took a while for them to start talking normal again. We could tell that they were friends because they were acting silly and goofing around. For example when one of them went to lie down, the other said "can you just not embarass me?" in a joking tone. We could use this conversation to apply to our writing because of the way they spoke to one another. We overheard them use the acronym "OMG" which proves that people don't speak formally all the time, especially when they're with their friends. You could tell that when teenagers are around people they're most comfortable with they tend to act kind of immature. One of the more surprising things we learned was that when two people are conversing they tend to take a while to adjust to others being present. They seemed to be comfortable after a while, one was standing up moving around and the other was lying down on the bench. One of the main differences we noticed between written and spoken conversations is the way that people speak. In written conversations, authors assume people talk more formal than they actually do. You can tell that spoken conversations are less formal because people use words such as "OMG" and "like".