Some basic principals if you wanna play Gym

If you are planing on playing Gym . there is some principals you must learn to avoid the mistakes that a lot of guys and Girls do
lots of people  join the Gym with big faith full of eagerness .. can't wait to start and lose some weight ASAP.
however after a short time they find out that they aren't  satisfied  for many reasons.
how to choose  right ?
make a decision and pick a fitness center you are comfortable with

example:

if you are going to join the Gym . find out if there is one on your way to work or if one of your friends wants to join with you. this can help you to stay motivated and it remind you not to skip the Gym and to focus on your goal to achieve it.