If I buy 4 pack...

[Renegas]

I will give a copy for a friend of mine, what else can I do with the 2 other copies? Are they tradable? Any guidelines on how to trade / steam trade forum?

[IceBlade]

The other two copies will appear in your Inventory, and are therefore trade-able.
As for guidelines, can't really say much more than to look up the individual items' value, and join the various Trade groups set up, and hit the trading forums.
This ain't the place to negotiate deals.

[Renegas]

Thanks IceBlade (I know there are the trade forums for deals). Just wanted to make sure the items would be tradable.