1)
proper form is paramount to muscle and joint safety.
2)
if you are a beginner, always use lighter weight than you think
you can lift. This will assure proper form is followed AND you
may be surprised how sore it makes you if you've been out of
the gym for a few months.
3)
breathe. don't forget to breathe! this assures that a) you won't
pass out with 200 pounds over your head on the weight bench,
b) you won't turn any strange shade of blue and c) it allows
oxygen to get to your muscles which it needs!
4)
do NOT lift free weights at home alone.
5)
do NOT worry about what everyone else in the gym looks like!
I've been on both sides of this one, being bigger than some
and smaller than some, and trust me, it really doesn't matter!
6)
squats and deadlifts are NOT bad for you! BUT, they MUST be
performed correctly
7)
rest is needed for muscle growth. Hitting weights 7 days a week
is not going to allow your muscles to grow. I wouldn't recommend
lifting more than 4 times per week unless it's for a very short
period of time.