how to send and receive a massage using xmpp in windows phone 8.1

rivate void SendXmppMessage(String Message, JId ReceiverJid)
{
ObjXmppClient.SendChatMessage(Message.Trim(), ReceiverJid);
}

ObjXmppClient.OnNewConversationItem += ObjXmppClient_OnNewConversationItem;
void ObjXmppClient_OnNewConversationItem(RosterItem item, bool bReceived,TextMessage msg)
{
if (bReceived)
{
//here what i have to add?
}
}
//If bReceived ==true, then message is received from other roster, or else message is sent by you to other roster. 

HI all,i need a help here i am trying to create chat app for WP8.1,using xmpp and openfire server i successfully logedin to the server.But i am stuck with the rest.
i am having this methodes but i dont know where i have to impliment? and what property setting should i do in my methodes that given above? please help me please