Your affection, looks, gestures and words allow your child to develop a view of themselves as loved and lovable. Acting in this way will encourage them to tackle new challenges and bounce back if things dont go their way.
Your praise will work best if you go up to your child, get their attention by using their name and looking them in the eye, then say specifically what you liked. For example, Jade, you cleaned your teeth, well done or Nadim, thanks for helping me put away the toys, you did well.
Your praise will be disregarded if it's insincere or doesn't match your look and tone.
Avoid giving praise with a sting in the tail. This sort of praise starts off well but ends with an implied criticism that wipes away the positive comment. For example, try not to say: Rory, well done for making your bed - shame you dont do it everyday or Lily, you shared your toy so nicely - what a pity you hit May with it yesterday".
Sometimes you may struggle to find things to praise. But look hard and praise small things - without positive comments your child is likely to find negative ways to get your attention.
You can never praise too much! Your child will not be spoiled or big-headed if you give frequent, genuine praise that reflects the effort they've put into tasks as well as the outcomes they achieve.