Children are lovely and exciting to be with even if you are tired, I found some people irritated when they saw a child and this keeps me a questions on how to tell them that child should be loved. It also affects the child mentally and emotionally if it is continue-sly done. So what I found to be useful to get rid off-it is to tell some ways to make some other people love their child and not to be irritated.
1. Look at a child in a positive way and don't entertain negative thoughts about them. Some people may be irritated because of their past experiences and frustrations but what I can say is that even them would be more frustrated if they will be (do you get my point?).
2. Smile. the first impression that you should show him/her is your precious smile. Why? It gave them comfort and it also tells them that you welcome them.
3. Play with them. Don't be so rude. You can act like a child sometimes, It also helps you to get rid off to frustrations and forget your problems for maybe a minute or an hour and it also helps your veins or blood to flow smoothly because it gives you a relaxation process as my personal experience tells
4. And Lastly, Talk to them as they were you friend or schoolmate.