How to warm up before lifting weights ?

[reus tips]

Most people are confused when it comes to warm-up exercises. Hollywood series and movies make you do stretching exercises before weight lifting. Stretching exercises are important, but exercise as warm-up exercises may cause injury and muscle ruptures. In contrast, aerobic exercise before lifting weights is an appropriate option to warm the body, but it is not enough.... 

Source : https://goo.gl/J8Npsw 

So how i can warm-up according to this source ? 

Thanks about your answer.