4K 0:12 | Back view unrecognizable african american man look at green laptop screen chroma key businessman talk on video call communicate at online conference teacher hold webinar use modern computer technology
4K 0:10 | Headshot portrait beautiful senior adult female worker freelancer pensioner pose indoors look at camera with healthy white toothy smile. Happy positive older lady advertise dental care for elderlies
4K 0:14 | Portrait of a young university student smiling and looking at the camera. Happy college teacher posing with crossed arms in campus library. Empty copy space for writing text. Template for advertising
4K 0:06 | Portrait of young smiling university student showing thumbs up looking at camera. Happy positive college teacher standing in campus library and showing gesture of like, agreement, success, approval
4K 0:15 | Portrait of young smiling university student pointing fingers at empty copy space for writing text and looking at camera. Happy college teacher standing in campus library. Template for advertising
4K 0:29 | Language Tutor African American man teaching languages online via his cellphone, chatting with students, and creating an animated learning environment with smiles and dances.
4K 0:08 | Strong senior mature old businesswoman wearing glasses looks seriously at the camera. Portrait of the Chief Executive in a modern office. Condifent stylish female CEO leader.
4K 0:25 | Portrait of a young, beautiful, attractive and intelligent schoolgirl in wearing spectacles in a white shirt giving a presentation in a lecture outdoor. She is smiling as she is presenting
4K 0:26 | Indian female blogger makes speech record new vlog use smartphone, film educational webinar, stream participant share experience for internet audience. Blogging, influencing, video call event concept
4K 0:08 | Woman blogger record video on smartphone makes speech show thumbs up gesture induce and motivate internet auditory, do influence work from home finish blog say goodbye, using modern technology concept
4K 0:12 | Reliable online tutor teacher lady demonstrate video lesson counting exercise