-- Congrats for the offer!
-- We all want more $$, therefore, let's do the talk.
-- I have lots of posters discuss about how to negotiate salary on my BLOG. You can copy the sample emails if you like.
-- Before the talk or email, list why you think they should pay you more.
-- The bottom line is KEEP the CURRENT OFFER.
-- Be happy, don't do negotiate if you do not comfortable to do it.
-- Skyle me if you have more questions.