I WILL ACCEPT YOU AS A FRIEND IF:
>> you have a steam level of at least 1
>> your profile and inventory is set to PUBLIC
>> you have commented on my profile the item you desire to trade
>> we have at least 3 common friends
>> you have items in your inventory that'll interest me

DOS:
>> Message me before you're going to invite me to a game, I may be busy or sleeping. I will quickly respond to your message when I am literally online
>> You can freely send me a trade offer or message me if you wish to trade an item from my backpack. I will respond to you if I'm interested or not
Respect me and I'll do likewise