Used when the situation is remarkably more exciting than usual, or when there is simply not enough time and one is trying to convey their approval in quick, orderly fashion.
If there is a healthy amount of time for a response.
Excessive adding of the letter W is acceptable but not necessary.
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.