Try doing three sets of 15 repetition of each side.
If You don't have weights you can do it wiith bare hand as well.
If You don't have weights you can do it wiith bare hand as well.
If You don't have weights you can do it wiith bare hand as well.
If You don't have weights you can do it wiith bare hand as well.
If You don't have weights you can do it wiith bare hand as well.