I usually like raffling about things I've done in the last few weeks, but summed up a few sentences.
I also like posting music in my raffles too, as I want people to hear different kinds of music, as well as them giving their opinions on it.
Well that method is very old, and unused at this point.
If you want still trade and learn how to, then I would suggest watching some youtube videos on tips for trading in TF2.