You can tell by the look in his button eyes.

3 seconds sound clip from the The Bear Who Slept Through Christmas movie soundboard.

You can hear this line at 00:02:45.550 in the VHS version of the movie.

Quote context

[...]

- Honey productions will resume promptly at, oh, say, half past March. Period.

- Will that be all, sir?

- And... Oh, send a carbon copy to the bees.

- I'll type it right up.

- Ted had tried to fight tradition before, and he's about to try it again.

- You can tell by the look in his button eyes.

- Well, the weather's getting cooler. There's just no doubt about it. And tomorrow it's gonna be downright cold.

- 12 below zero in downtown Bear City.

- I'll have the complete forecast, and the rest of the morning's bear news right after this message from Bear Air.

- This year, Bear Air offers you first-class paw space, and a variety of vacation hibernation packages: east, west, north, or south.

[...]