--In the 1st case i want to know what is the procedure to give it to another dynadot member. Select the domain to be transfered, Unlock the domain, at the end of the domain's page under "Change Account" enter the User name whom you have to transfer and his email, click change account.
--In the 2nd case, for a non-dynadot member. Unlock the domain, give the new owner the authenticate code and ask him/her to initiate the transfer. After initiation of transfer process a maximum six days may take to complete the transfer (This usually happens when the registrar doesn't releases the domain, but dynadot don't do this kind of act)
Please read this for details: http://www.dynadot.com/resource/article/section.html?category_id=1
If the buyer does not want to create an account with us, you will need to communicate with the buyer on how to transfer the domain to a domain registrar of their choice. Please note that newly registered domains that are less than 60 days old cannot be transferred to another domain registrar until after the initial 60-day period.