To change text you can use these examples:

How are[b]you[/b]today. The word (you) will be larger.

Always remember to put this[b] in front of the text,

and this one after the text [/b] that you want to show larger.

This text is [i]italic[/i]

This text is [u]underlined[/u]

For different color text, type before your message

[red] and always type after your message [/red]

Words can be written in [red],[orange]

[yellow],[green},[blue],[purple],

[brown},[black],[white],[pink][gold}