that person is logged in but may be away from their computer on doing something else other than gmail.
The gray dot is the status of the person. If the person is gray, that means that he/she is not available. Green dot means that the person is available.
Video chat on Gmail is legal. You can do it via Gmail chat or Gtalk. Hangouts is the latest name of the chatting system.
You need to have a gtalk and click they're name then chat or IM
You can, you just need to add people who have Google Talk or use gmail I think you can chat but you have to have contacts and stuff so that is my opinion. You can chat but you need contacts and plus, i have a great chat website - www.clubpenguin.com - it's great!!
It means that they have a webcam so u can video chat!
Chatting on Gmail is done through their IM. The name of IM of Google is Google Hangouts. It can be used for chatting to friends or groups.
just log into your gmail account on a computer, sign onto chat, type the person's name into the search box in chat. you will see a drop down box, there is an option on the right hand side "SHOW IN CHAT LIST", click to enable.
Gray bubble means that the person is Invisible. You cannot see what the person is doing. The person's status in invisible.
if the person in the Gmail chat box has a camera besides their name, that means that the computer they are using has a web cam that is ready to use. this lets the other people know that the person with the camera icon is able to video chat.
You scroll over their name in either your chat box or contacts list.
You gmail does not give a notification about rejection. It means that either the person has not read it. Or it could be that the person rejected it.
It cannot happen while chatting in Gmail. Your name would be always displayed in the chat. You cannot make that name to your ID.
To video chat with someone on gmail you have to make sure that they have video chat. To do this you need to look @ their icon. If it's a video camera option they can video chat with you. If you click chat and then underneath of where you type click on video and more and click on the arrow that is facing up and click start video chat.(to get video chat installed sign into gmail and click on settings and click on chat. Scroll down to Voice and Video Chat. Click learn more and it will take you through the process of installing it. It's free).