I love twitter, I am fairly new to Etsy (1 month) but I got one sale from twitter, use hashtags to talk about other things related to you or your shop, don't simply post about your shop. This is what I do, 2/3 about me and beauty related tips and the rest shop sneak-peeks and announcements, instagram also helps. You can follow me at @amornaturals or my main twitter account @styleamor