It most likely wont say explicitly. The best thing you do when you hope to get a gnosis from God X is to do your research. Look at the Gods Wiki entry, read the gnosis article, read the wiki about
religion and
gnosis. If the god is connected to any groups, research them, find out what they are about and what they do. Perhaps even peruse some threads where other players got marks or ask other players who have gnosis mark of X god what they did to earn it. Collect ideas and then go about your own path. First marks are always the easiest ones to gain, its just means you caught the gods interest. The others you really have to buckle down and Earn. Just give the god a reason to WANT to mark you, to WANT to take interest in your PC. Stand out from the other people with your actions and endeavors within that gods Domain and you will surely get one mark. Keep on being innovative, and you will, no doubt, earn lots more.
I know that did not specifically answer your question, but all gnosis are awarded on a case-by-case basis. So, I feel, that is the best advice I can give you.
PS- If you PM me the code you used for your signature I can look at it and try to fix it for you.