But on Wednesday the actress let her hair down with a trip to watch a basketball game.
The 34-year-old was joined by her agent and the pair naturally were sat courtside in the best seats in the house.
Was it something he said?: Katie Holmes was left
in stitches as she watched the basketball with her agent in New York on
Wednesday
Katie's representative told Mail Online that Adam is the star's 'new agent, who is married with children'.
The pair were more interested in talking to each other than watching the game and were seen whispering into each other’s ears and sharing a few jokes.
They were at Madison Square Garden in the Big Apple to watch the Golden State Warriors take on the New York Knicks.
Close bond: The pair were very comfortable with
one another and it's clear they have a strong friendship on top of their
working relationship
Pride of place: Naturally the actress and her agent Adam Schweitzer had the best seats in the house and were sat courtside
However the former Dawson’s Creek star dressed the outfit up slightly with the help of pillarbox red patent pumps and a slick of matching lipstick.
Her agent, who was clearly a huge basketball fan, was wearing a black suit with blue shirt for the occasion.
Me time: The Dawson's Creek beauty usually focuses on her daughter and her career but decided to let her hair down for a change
Making an entrance: Katie and Adam arrived in time to watch the second half of the game
She also spent some time talking to footballer Vitcor Cruz, who was seated beside Adam.
The day before the pretty brunette was spotted arriving at the gym in the early hours of the morning to squeeze in a workout amid her hectic schedule.
Katie has had some time to herself recently as her six-year-old Suri reportedly spent five days in London with her father Tom.
Low-key occasion: The 34-year-old was dressed casually in a crumpled powder blue shirt, ripped jeans and red patent pumps
Big win: No doubt Katie and Adam were pleased to see the New York Knicks beat the Golden State Warriors
A source told E!: 'Last week, Tom
sent his private jet to NYC to pick up Suri so she could come to London
and spend some time with him.'He is currently staying at a hotel just outside of London. She spent five days with him.
'He has been working quite long hours on the set, but he was able to have some time off to be with her. They had a really lovely time.'
Famous friends: Also sat courtside was footballer Victor Cruz (far right), who Katie was seen talking to during the game too
Cheerful: Katie happily chatted away to a photographer before leaving Madison Square Garden