Bu using your mouse. 
Google Friend Connect Followers :
1. By looking at the followers gadget on your blog
OR
1. Go to blogger.com
2. Click your blogge name.
3. On the page that appears, you will see your followers count :

Feedburner Subscribers :
1. Go to feedburner.com
2. You will see your feed ( blog ) name along with your subscribers count.

The actual number of subscribers may be slightly less because at times bots are also be counted.
To see your e mail subscribers count
1. Go to feedburner.com
2. Click on your feed ( blog ) name
3. Click Publicize tab on the top

4. On the left. click e mail subscriptions

5. Scroll down and you will see your subscribers count.
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The actual number of subscribers may be slightly less ( if they did not verify their e mail ). To find the actual numbers, click View Subscribers details and count the number of people for whom status is shown as active.
