Log onto the Serve website and send a transfer to my account.
The email address is in the payment details after you open a trade.
When the money clears, you will receive the bitcoins.
Typically all the process lasts between 3-5 minutes.
If you mark as paid before payment is sent or the trade is cancelled by the system because you did not pay on time (within 90 minutes), you will get a negative feedback. This is only for serious buyers.