New to Coin Collecting/exchanging

Hi,

I'm fairly new to coin collecting and exchanging, selling.  How do you know who is looking for which coin?  I see lots of of for sale but never see any looking for ads? 

and every time you pop something ebay comes up. 

as I said new to collecting. 

Thanks 

Welcome to numista.

Numista is not a trade club, for that you have EBay and others.

Edit: trade in this case as selling/buying. EXCHANGING is of course OK!