Children thrive off praises, who doesn't anyway. I found out that I have gotten lots of positive behaviours out of my kids through praises. You can raise your child's self esteem and confidence with positive words. Praise helps to encourage good behaviour in children.
I always look out for opportunities to praise my children and I'm seeing the results.
When I commend them for greeting and saying "Hello" to people, they tend to greet more and loudly too.
If I tell them how nice it was for tidying up their toys alone, they go on and tidy the whole house (as much as their little hands could).
Telling them how happy I am for dressing up the dinner table, they clear up their plates after eating. These are to mention but a few.
Praising them doesn't have to be a pretence and I think kids have this instinct that tells them when you are real or fake. I mean it when I praise them. I look into their eyes with a big smile from my heart. They know it and I think they feel it too and that's why they respond to it.
Kids are easily bored and that's why I wouldn't want to bore them with a repetition of some words of praise. I goggled something on-line. It is called 101 WAYS TO PRAISE A CHILD.
It's amazing and I love it. I printed it out and pasted it where I can always see it. With this, you don't have to use the same old one again and again. There are so many versions of it (101 Ways to Praise a Child) if you go to goggle. Print which ever one you like and start PRAISING.
I wish you good luck.