All common rolls are subject to change by individual Storytellers(ST). These are as a guide only an ST could make things more difficult depending on the IC situation.
To notice a group of nearby PCs - Perception + Awareness, Difficulty 6
To hear a normal conversation accross a noisy room - Perception + Awareness, Difficulty 8
To read someones emotions / Detect a lie - Perception + Socialize, Difficulty 7. Resisted by Manipulation + Socialize, Difficulty 7.
<'Language'> - Indicates something that is spoken or written in a different language. For Example "<Old Realm>Good Afternoon, How are you?". Your character can only understand this language if it is on there character sheet.
<q> or <w> - Means quietly or whisper. Characters should act appropriatly. There is a whisper function which only the person you send to and all STs in the room can hear if an ST declares so this may have to be said using a prefix so other characters have a chance to hear.