There are many ways you can tell that emails are phishes:
1) “To” address is not to you
2) “From” address is strange
3) Be suspicious if the email is asking for your credentials, passwords, or other account information
4) Bad grammar / English in the email
5) The time of the emails – emails sent at strange hours of the day
6) The person sending the email – would an email like this come from this person?
7) Email that has a harsh tone or that is demanding. “You have to do something by this day or else”
8) You should be immediately suspicious of emails that contain hyper-links (Links to websites)