Im talking about a description of a certain person once he or she appears on screen, while she talks show thew title "Dr Alaistar Wells, expert on archeology" I want to keep that little subtitle moving on screen to add a bit of dynamism to the talking head video. This is often used on professional videos. basically the identifier or credit of that perosn usally located below or by the side of the talking head keep making minor movements. Itmay sound distracting but its better than just a steady boring, opld fashioned static title with a boring talking head by its side
Use the Effects Control Window > Motion.
Apply transitions like Linear Wipes, dissolves
Keyframe effects on the title..
Animate in After FX
Find something you like as a sample and replicate the effect.
Find an example you like and post a link. My guess is that it will be as simple as shooternz describes.