How do you do that?

OK so its a stupid question but when I am out and about in a group several players post up speach like "I am level 15 and 55% of the way to the next level".

It seems to be something that is automated. How do they do that?

You hold down Ctrl and click or double click whatever you want to show them, such as experience, health, energy, weapons, etc.

Hold ctrl and click ur exp bar.

it works almost everything, (skills , hp, emergy, exp, weapons, targeting, attacking)

basically nething u can click

Have you noticed that they announce things that they are attacking also? If someone announces "I am attacking so-and-so" it means they want you to know what they are doing, and if appropriate, you should hit T space and attack the same target automatically. It's called focus fire and it works to take down baddies very efficiently.

Your monk or other caster might ctrl + click on their energy bar to inform the group that they need regen time before running off again. "My energy is 2 of 45" - that is a good one to pay attention to.