A positive connotation for the word friendly would be?

Here are some positive connotations for the word "friendly":

More Formal:

* Amiable

* Affable

* Cordial

* Genial

* Gregarious

* Warm

* Welcoming

* Hospitable

More Informal:

* Chummy

* Palpable

* Jolly

* Nice

* Pleasant

* Cheerful

The best word to use will depend on the specific context and the tone you are trying to convey.