Young man using his smart phone sitting in a park bench

using phone text messaging online messaging smart phone young adult technology student mobile phone concentration millennial generation wireless technology outdoors social media portable information device internet park bench film - moving image 4k resolution communication men side view bench people one person one young man only young men public park leisure activity playground casual clothing sitting horizontal white people only young men t-shirt 20-29 years serious males adult usa holding city one man only adults only only men lifestyles city life tranquil scene relaxation