Counting water intake

Many people here count " plain" water only. If it works for them, great. I don't and I'm well hydrated.

The main function of the water counter is to make sure you are hydrated. Your body is able to use the water in just about all beverages except some alcohol as well as the water in fruits and vegetables. The caffeine in coffee and tea do not cancel out the hydration from the water that is in these drinks.

There are articles from Mayo Clinic and other reputable scientific journals explaining this further if you wish to do a quick Google search.

I count water and seltzer, which is all I drink throughout the day anyway.

just water or well water lol

I tend to not count my water intake. I just go on if I'm feeling thirsty and drink then. Hydration can come in many forms, not just water, so I tend to not count it.

I count my water as I consciously am trying to drink more however as time goes on I am becoming much more aware of my bodies signals to drink before I get thirsty.
I can usually say by looking at pee colour or just how I feel how much I've had without looking on MFP or my water bottle.

Your body will absorb water from pretty much anything with it in, counting that is impossible though. I have diet soft drink with caffeine in so I try and drink a little more water to compensate. You can bet that within 10 minutes of getting halfway through a caffeinated drink I'm bolting to the bathroom. DAMN DIURETICS!

Depends on why you're tracking it. If you're just concerned about staying hydrated, all liquids count. In fact, in the original estimate of 8 cups/day they were including the liquid in "solid" foods, like fruit. Since then others have pointed out that the amount needs to be adjusted based on your weight, the climate and your exercise levels.

If you're increasing water intake (and decreasing calorie-dense drinks like soda) in order to help with weight loss, you're better off counting only low or no cal drinks.

For more about water and drinking, including references, see http://www.myfitnesspal.com/blog/Robin_Bin/view/water-265761

Editing to point out that alcoholic beverages do not count like other liquids. Given their high calorie, low nutritional content, it's probably best not to count them.

Oh, and to answer your question, I don't usually count liquids/water because I've gotten in the habit of drinking plenty. Occasionally I track for a day or so to test, and I count water (tap, bottled and carbonated) and unsweetened herbal tea. On the rare occasions that I add honey or something to the tea, I still count it, but I also track the calories. Today I'm way over... probably about 15 cups, but I'm fighting off a cold, so lots of tea and liquids. On top of those I had a smoothie, fruit and vegetables, so plenty of liquid.