What are fun ways to get into shape? I wnt to loose 40 or 50 pds.

I want to get into shape/ I want to loose 40 or 50 pds.  Anyone know how to do that?
 
     What are fun ways to get into shape?   
 
• One thing is I am going to try to be a lot more active.
 
• I am going to ride the exercise machine when watching TV.
 
• Find my passion in Life.
 
• Self improvement.
 
•  Be more social
 
•  Hang around with active people.
 
• Volunteer