I've seen the help on the site of how to trade, but when I try it, I never see the option 'Send Trade Request' on other player's profiles. I remember that for duelling, you will only see the option to send a duel request if the person has created a duel, hence the text is blue. Is there something similar for trade requests? Certain conditions that I have to fill? Or have I missed something else completely? Please help!

I think you have to be on there friend list.