A wink works pretty good, and often relieves potential tension, i.e. ;-) And for the people who can get off a high horse about online slang and talk with a bit

A wink works pretty good, and often relieves potential tension, i.e. ;-) And for the people who can get off a high horse about online slang and talk with a bit of inflection, gratuitous emotional additions like Whoahohoho and Ohhhh work pretty good too. A lot of people are really too into formal communication though, as evidenced by those commenting here who don't appreciate the value of well placed sarcasm.