A picture is worth a thousand words
Sometimes younger children struggle to understand how to deal with a situation that can overwhelm them. This could be about finding friends or it could be trying to work out how to play with other children. One way to help a child is to simply draw the story. How best to play, for example. The first page shows the child meeting the friend. The second page may show them greeting the child and the third page could be about what to say such as, "can I play with you?".
The story unfolds through the simple pictures. Keep the pictures and story simple. We call this a social story and they work very well with children who cannot respond well to just being told what to do. Some children do not process the problem easily through discussion.
I have used this with many a child and they love telling the story through the pictures. The child especially enjoys telling you how successful they were when they went through the process and followed the picture book. A social story can change if you find it needs a new direction. Children learn through visual images and when they are emotional about matters, pictures speak a thousand words. Simple drawings can say many unspoken words which gives the child a chance to express their feelings comfortably. To help a young child, the parents can draw their own social story to help the child understand the value of the pictures.