Really, I do feel like the best way for us to start off is to meet each other and say hello. Here's a basic template of some things that it might be a good idea to include in your introductory post, should you make one. Feel free to add or leave out as many things as you like; this is by no means a set list.
Name:
Why you like Doctor Who:
How you first got acquainted with this fandom:
Favorite Series:
Your favorite Doctor(s):
Your favorite companion(s)/characters:
What you'd like to see from this community:
( And because I suggested it, here's my introduction . . . )