Is the Glass just Half Full?

Our office has a poster, which is about +ve attitude. I am sure you would have come across that. Here is the sample

Traditionally it is thought that the answer is between the two

1. glass is half empty. This is considered -ve thinking
2. glass is half full, which is considered as +ve thinking.

Here are my thoughts about this, and you figure out whether it is +ve or -ve ;-)

1. The glass can take more water
2. The glass is half full, but with stale water
3. I am not thirsty
4. Hey, I am looking for Juice
5. Is this drinkable?
6. Reminds me of the classic tea glass found at my village
7. This is the left over
8. Nice photo!