how to get more twitter followers?

[Steph W]

what do I have to do to get more followers on Twitter?

[Umer Riaz]

1)- Show your face. Make sure that you have uploaded a photo to your Twitter profile. I will not follow anyone without a photo. Why? Because the absence of a photo tells me they are either a spammer or a newbie. Use a good headshot, like I describe in my post, “9 Suggestions for Taking Better Headshots.”
2)- Create an interesting bio. Don’t leave this blank. It is one of the first things potential followers review. Explain who you are and what you do. If you were a brand or a product (crass, I know), what would be your tagline? Include that in your bio. Also, be sure to include a city name. By the way, Twitter will not include you in search results unless you fill out your username, full name, and bio.
3)-Use a custom About page. Your Twitter bio can only include 160 characters. It’s not much room to tell your story or introduce people to all you offer. Consider creating a custom About page on your blog and linking to it on Twitter. Then, when the prospective follower clicks on that link, they will find a page you have created just for them.
4)- Make your Twitter presence visible. I can’t tell you how often I have read an interesting post and wanted to tweet the link, but couldn’t find the author’s Twitter username. So I gave up and moved on. Make it easy for people to follow you. Display links to your Twitter account in your email signature, your blog or website, business cards—everywhere.
5)- Share valuable content. This is probably my most important piece of advice. Point people to helpful resources. Be generous. Be inspiring. Use lots of links. Create content that other people look forward to getting and want to pass on to their own followers. This is the key to getting retweeted. (I think it’s why, on average, I get mentioned in other people’s tweets 173 times a day.)
6)- Post frequently, but don’t flood your followers. I do most of my blog reading early in the morning. I scan over 220 blogs, and love to share the gems I find. I used to do this as I found them, which often meant a flood of 8–10 posts at a time. Now, I use Buffer to spread these throughout the day, so I don’t overwhelm my followers.
7)- Keep your posts short enough to retweet. Retweets are the only to get noticed by people who don’t follow you. Therefore, you must make it easy for your followers to retweet you. Keep your tweets short enough for people to add the RT symbol and your username (“RT @MichaelHyatt”). For me, that takes up 17 characters, including the space. That means my tweets can be no longer than 123 characters (140–17=123).
8)- Reply to others publicly. I used to reply to people via DM, thinking my message was irrelevant to most of my followers. Because I wasn’t replying in public, this made me look unsociable. So now, I reply almost exclusively in public. The only people who see those messages are those who follow both me and the person I am replying to—a small subset of my followers. So, it’s sociable but not annoying.
9)- Practice strategic following. This is not the same as “aggressive following” (which I condemned earlier). By this I mean, follow people in your industry, people who use certain keywords in their bio, or even people who follow the people you follow. Some of these will follow you back. If they retweet you, it will introduce you to their followers. For example, I could use Twitter’s Advanced Search Feature to find everyone within a 50-mile radius of Nashville who has used the word “leadership” in their bio or a post.
11)- Be generous in linking and retweeting others. Twitter fosters a culture of sharing. The more you link to others, the more people will reciprocate. And that’s precisely what must happen for you to grow your follower count. You need others to introduce you to their followers. However, don’t ask for a retweet; simply post content worth retweeting.
12)- Avoid too much promotion. Yes, you can promote your blog posts, products, etc. on Twitter but be careful. There’s an invisible line you must not cross. If you do, you look like a spammer—or just clueless. Not only will you not get additional followers, you will wear out your existing followers and many of them will unfollow you. This is why I advocate the 20-to-1 rule.
Don’t use an auto-responder. I used to use SocialOomph to thank everyone who followed me and provide a link to my “Beginner’s Guide to Twitter.” I thought I was being courteous and helpful. As it turns out, I was being annoying. This is just more clutter in people’s Twitter inbox. Avoid it.

[Zackary Lusk]

You can get follower by advertising your profile on many sites.

[Mickey]

Follow more people to get follower back.

[Liam]

Well there are many options. I'll just share some of them.

1) Use a Relevant Profile & Cover Photo

The first step to get more Twitter followers is to make sure you have a clean, high-resolution logo for your profile photo and relevant cover photo. This way no one thinks you are a spammer or fake user when they are deciding if they should follow you. Believe it or not, there are hundreds of thousands of spammers on Twitter today, and you can usually tell because they never bothered uploading a profile photo. Don’t be mistaken for one of them!

2) Have a Unique Twitter Bio

When people are deciding they want to follow you or not, they will scan your Twitter bio to see if what you will be tweeting will be relevant to them. A good formula to follow is stating out what you do, where you work, and what industry you’re interested in. This will quickly allow potential followers to gauge if you will be sharing relevant information they will want to follow. Optimizing this can get you more Twitter followers because people are always looking for new people to follow.

3) Buy twitter followers

As weird this might seem you can actually Buy Twitter Followers, yes, that's right! Buy be careful, there are many companies promising real followers, only few deliver them. I know this, because I used to buy them constantly and from my experience I can tell you 1 website that sells real followers(check link below)