Keep somebody company
Definition 1 of 1
Pro Tip 1/3Social Gesture
Shows support or kindness by being there for someone who might feel lonely. 
When I was recovering from surgery, my friend came over to keep me company.
Pro Tip 2/3Not Just Physical
Can also mean talking to someone on a call or text to make them feel accompanied. 
She couldn't visit her mom, so she called to keep her company over the phone.
Pro Tip 3/3Temporary Companionship
Often used for situations where company is provided for a limited time. 
While you wait for your taxi, I can keep you company so you're not alone.