Add H1 tag to my homepage. Help!

[Cai2]

I'm a newbie for SEO. Anyone can give me some assistants on adding H1 tag to my homepage? Thank you! 

www.woofo.nz

[MS-WEB-DESIGNER]

Dear Cai2,

Hope following suggestion will help you.

1. Use only one h1 tag in home page

2. Try to use keyword within it but it should justify the sentence and content

3. Put it as first heading