Choose the size of the grid that you want to play. The larger the grid the longer the words are that can be included and more words are likely to be included.
Look for the words. All the words can be read left to right and top to bottom.
Click or touch the first letter of the word and the last letter of the word.
The words will then be highlighted in different colours.
Find all the words and you will win the game.
BTW - if you have words in the grid that you were not expecting - click on the page title to refresh. If you just have https://tutor-your-child.com showing then the words will be drawn from all of the wordsearches on the website.
Just choose the level and then fill in your words. There are 3 levels to choose from, basic, intermediate and advanced and each one shows you the options you can have. However, if you want more freedom to choose you need to look at some of the other word search makers.
How to make a free Word Search using Discovery Puzzlemaker
I find it useful to create my wordlist in Excel first so I can reuse them in different puzzle makers, or choose different numbers when I have a long list.
Talking of Excel here is a video of using Excel to create a Word Search Puzzle. I used to use this method quite a lot myself. It takes longer but I have more freedom to do what I want with it. However, these days I generally prefer to just use Excel to keep my word lists in and then use one of the automatic word search generators.
How to Create a Word Search Puzzle in Excel – Tutorial