When it comes to Twitter, subscribers or "followers" are your key to building popularity. And popularity is a fundamental and a very important concept to grab hold of. The idea is that by following someone, they'll agree to follow you back.
The following are other ideas which can help with Twitter followers:
1) Connect your blog or social network site to your profile.
By adding a link to each of your social media profiles to your Twitter profile,
and vice versa, you are making sure everyone you know is able to reach you in
all the places they have accounts as well.
2) Ask others to recommend your profile. A blog reader could
recommend your social networking page, or other members of your social network
could recommend your blog. Word of mouth can go a long way, especially in the
world of social networking. Although you may not get every person who hears of
you on your Twitter page, you can easily raise the number with a few referrals
from friends.