Now, the way to stay the happiest is to let your tongue lickle and keep your tummy tickled.
7 seconds sound clip from The New Adventures of Winnie the Pooh - Friend, In Deed / Donkey for a Day (S1E2).
You can hear this line at 00:13:19.693 in the Blu-ray version of the TV Series.
Quote context
[...]
- I know! I'll ask Pooh Bear how to make Eeyore happy.
- Thanks for inviting me over, Pooh Bear. Guess you couldn't get anyone more interestin' to come.
- No, Eeyore. I'm going to cheer you up.
- But I'm already cheered up. See?
- Now, the way to stay the happiest is to let your tongue lickle and keep your tummy tickled.
- Not that I'm complainin', but I don't like...
- I know what you mean. I can see you're happy already.
- Oh, of course I don't mind. Second helpings are what happiness is all about.
- Oh, dear. Look what a wonderful time they're having.
[...]