Accents are a manner of speech occasionally described when characters speak. Your accent is set when your character's place of origin is established, which will usually be when you first register a phone. If you feel your character's accent is inaccurate, you may use the SUPPORT command to inform the staff and suggest a change,
It may not always make sense for your character to be able to precisely identify another character's accent, particularly if your character is from a different alliance or another planet. Use your own judgment.
In terms of good roleplaying practice, your character's accent should preclude the need to type in dialect ("Oi wotcha guvna!"). In literature, when a character's dialogue is represented phonetically as a dialect, it typically signals that the dialect is a purposeful affectation rather than genuine, or that the character is largely incomprehensible to others. Before choosing whether to type in dialect, consider exactly what it is that you wish to convey about your character.
If you do choose to type in dialect, be sure that your dialect is at least accurate! For example, if you're trying to capture an Irish or Scottish accent, an "aye" and a "ye" isn't it. Take some time to listen to a native speaker, or look up acting advice meant for people attempting to mimic the accent.
Finally, a reminder that this game takes place three hundred years in the future, in a universe where 99% of humanity is now speaking Esperanto. Old language patterns have long since eroded, even for those from Old Earth. For all these reasons and more, we strongly recommend against typing in a dialect. Typing in dialect may be subject to text filters if it seems ill-considered and a distraction from roleplay.