Considering that this relationship maybe over a long distance the chances of you meeting the other person are almost next to none.
But don't let this stop you from keeping in contact of each other.
If that doesn't work usually it's best to address someone with a question.
For example, to ask someone a question you may want to use this format to do it and to talk to others the same way: Person's name: Your question Most of the time you will get someone's attention this way.
Just keep in mind however that things can happen in a chat just as they do outside. Just as the name implies, cheating can happen on a computer just as in real life.
Just read those stories of married people having affairs on-line.
This is most of the list from that place: AFAIK As Far As I Know AFK Away From Keyboard ASAP As Soon As Possible BBL Be Back Later BBN Bye Bye Now BBS Be Back Soon BEG Big Evil Grin BF Boy Friend BRB Be Right Back BTW By The Way BWL Bursting With Laughter C&G Chuckle and Grin CID Crying In Disgrace CNP... This can make your messages in bold, italics, or color.
Or if you want to do the asterix technique instead in an IRC chat you can do that also.
It depends on the person's preference of doing their actions.
Try not to yell, this is where you either type in all capitals or use text editing to increase the font size and bold type of your message.
In IRC's you can only type in all capitals, there is no text editing.