Hey, how do you send eggs to other players?

Well it depends what kind of egg is it, It could be a egg in your hatchery or a WoL egg that is in your inventory.

For a pet in your hatchery you should set the price by click "manage pet" on the egg you want to give to other players and put their ID + the agreed price in.

Ifs its in your inventory, you select it and click on the envelope button and put the name of the player as the recipient