senior and mid-adult businessman shaking hands

20s 25 30 60s achievement adult agreement american associates bright business businessman businessmen businesspeople career casual caucasian celebrate celebrating colleagues color congratulation corporate corporation coworkers day employee employment european executive executives face good gray hair hand hands handshake horizontal image indoor job lifestyle male man mature men mid mood office old partners people person photo professional professionals room satisfied senior shake shaking shirt sixties skyscraper smart smiling standing success suit tie two white window work working years young