Go to the proper exchange section and click the red post thread button...

There’s a frog section, x Metal section and then a “general” glasses section.Thanks.
Do you need a certain amount of post on here to send someone a pm?
You do that in the Exchange threads. There are minimum requirements that you still need to meet.How do you buy and sell?
For PM's I believe it is the same minimum requirements to buy and sell. Have to be a member longer than two weeks. Which both of you are. And have a minimum 15 posts. Which you both are short of. Just look around and comment "Hey, Awesome glasses." Or " Right on." And you'll meet the post count in no time. Aloha.Do you need a certain amount of post on here to send someone a pm?