I am going to chime in here for a few , because I see a lot of great advice being given here but there are also a few things that perhaps I either missed or no one thought of.
Sometimes while Roleplaying I get a tell from a friend, sometimes more then one. I get distracted by it, so i check to see if the person I am Roleplaying with has posted. This goes as well for when I am sitting around with a larger group of people, same approach I am looking to see if they replied if not, I have a few seconds to maybe answer a question a friend asked, someone in my FC or one of the LS I am in .Â
Does it always happen no ? but I have done it so I know it can happen. The best advice though is a sending of a OOC tell/whisper to some in the group , to let them know you are trying to break in to the conversation. Do this and wait for several minutes. WHY might you ask ? Because sometimes people spend a minute or two typing a reply to a conversation going on. You might be trying to break in, but they are stuck waiting for a reply before they can even reply to yours.Â
Are their cliques , yes its natural actually. I tell people I am RPer friendly all the time, and if you see me and I am walking by or hanging out then attempt to interact.Â
I tend to hang back a bit from Large public area's because keeping up with the chat scrolling across my screen can be hectic at times. When that happens I do miss stuff. I wish there was a line break between peoples posts, that alone would make things better for me at least.Â
I will say if your having a hard time breaking in still , go to some of the RP events posted here on this website. Tavern night every Thursday has been an amazing event. There is also a date auction event  coming Saturday (shameless plug in because I am up for auction. ) , put yourself up for auction, it will get some interaction going, and let people know you are out there to Role-play .Â
just don't give up and you will find Role play.
Sometimes while Roleplaying I get a tell from a friend, sometimes more then one. I get distracted by it, so i check to see if the person I am Roleplaying with has posted. This goes as well for when I am sitting around with a larger group of people, same approach I am looking to see if they replied if not, I have a few seconds to maybe answer a question a friend asked, someone in my FC or one of the LS I am in .Â
Does it always happen no ? but I have done it so I know it can happen. The best advice though is a sending of a OOC tell/whisper to some in the group , to let them know you are trying to break in to the conversation. Do this and wait for several minutes. WHY might you ask ? Because sometimes people spend a minute or two typing a reply to a conversation going on. You might be trying to break in, but they are stuck waiting for a reply before they can even reply to yours.Â
Are their cliques , yes its natural actually. I tell people I am RPer friendly all the time, and if you see me and I am walking by or hanging out then attempt to interact.Â
I tend to hang back a bit from Large public area's because keeping up with the chat scrolling across my screen can be hectic at times. When that happens I do miss stuff. I wish there was a line break between peoples posts, that alone would make things better for me at least.Â
I will say if your having a hard time breaking in still , go to some of the RP events posted here on this website. Tavern night every Thursday has been an amazing event. There is also a date auction event  coming Saturday (shameless plug in because I am up for auction. ) , put yourself up for auction, it will get some interaction going, and let people know you are out there to Role-play .Â
just don't give up and you will find Role play.