Yep, this is entirely possible. You can find them, download them, get their emails and email them with the perfect subject header they could never ignore.

1. EMAIL PEOPLE
WHO TWEET
ABOUT HOW MUCH
THEY WANT YOUR
PRODUCT
PEOPLE WHO SAID THEY NEED
YOUR PRODUCT
WHO IS HUNGRIEST FOR
YOUR PRODUCT?
YOUCANFINDANDEMAILTHEPEOPLEWHO
AREHUNGRYFORYOURPRODUCT. YES, REALLY.
TOOLS?
THERE ARE 2 WAYS TO FIND PEOPLE WHO
SAID THEY WANT YOUR PRODUCT
2 WAYS
PEOPLELISTEDBYASURVEY
WRITTENBYAPOTATO
PEOPLE YOUR POT SMOKING
COUSIN RECOMMENDS
1. They tweeted "I need X"
2. They follow your competitor
DOWNLOAD THEM AND GET THEIR EMAILS
THIS IS HOW YOU FIND THEIR EMAIL ADDRESSES
Download a file of all the people who tweeted
e. g. ' I need summer pants' on BuzzSumo. com
Upload that file to AnyMailFinder. com and
it will find their email addresses. Then
email them with the subject header " I saw
that you tweeted / follow X" . They' ll open
that email.
PEOPLE WHO YOU KNOW NEED
YOUR PRODUCT
PEOPLE SOME SMART GUY SAYS
REALLY NEED YOUR PRODUCT
Download a file of all the people who follow any
twitter account using FollowerWonk. com