Think time is a time that the real user(Who ever uses the application/product) waits between the actions.Eg: If your going into an ATM centre to made the transaction.By placing the card you will get main screen after performing the other action i.e transaction you should wait for some time.That waiting time is called as THINK TIME .
Think time is the time user waits between performing actions.Means user may click on a link and page will be uploaded after that user may not perform immediately other action he waits and searches for desired string or tab after finding it he will perform an action of clicking or filling something. the time he takes in between these actions is called thinktime
Think time: It is the time taken by user to send next user request to server.
eg. User sends a request to open http://www.gmail.com and page will be open after few second. After that user does entry (usrname & password) finally submit it.
So the time taken by user to do entries is think time of user. That is also recorded by loadrunner while recording to emulate real user activity.
