Choose a new character. For example, you can click to select Chloe, Nom-Nom, or Charlie.

Or, click the icon to choose a new sprite:

What do you want this character to say?

Click the Looks category. Drag out a say Hello! for 2 secs block.

You can type in your own words.

Make your character appear when you press a key.

Add a script like this:

Select which key you want to use.

Each time you press the key, your character will appear.

You can also make the bears respond using the same key.

Click the thumbnail to select Bearstack.

Now add a script for the Bearstack like this:

Try pressing the key again.