No, nobody can see a private account unless their request is accepted.
Yes, anyone who is following you when your tweets are private can view them.
You have to follow them and they have to accept the follow for you to be able to see their tweets, if they don't accept, then you can't see their tweets.
If your account is private then only people that are following you can see your tweets. It doesn't matter who you are following, they must be following you to view your tweets. So, if you are following someone but they aren't following you then they won't be able to view your tweets.
If your profile/tweets are not protected then anyone can see your tweets.When you mention someone in your tweet, that tweet will always appear in their @replies tab whether they are following you or not.
You can view their tweets by going to their profile. (the web address) However, if their account is private then you won't be able to see them.
There is no way to track who visits your twitter page.
You can protect your tweets but all of your followers will still be able to see the tweet and not just one specific person. To keep a message completely private then you should use the direct messaging option.
If you protect your updates, the people who follow you CAN see your tweets, but ONLY the people who follow you.
You can block them - you won't see any of your tweets when you do.
Private pages are pages where only the people followed by the person who holds the page are allowed to see the Tweets and private information. If you want to be able to view a private page, you have to get the page holder to follow you first.
Yes, they can. Anyone can look at your pictures from Instagram on there unless you set it as private, tweets..etc. For an instance, when you look up your friend on twitter and look at her/his twitter, you can see there tweets and usually pictures.. that is how your's is as well
Log into your account and you will see the recent tweets from those you are following. To see tweets that you have been mentioned in, click on the @username tab on the right hand side.