It is sure that on your first day at work, you’ll be meeting a lot of colleagues. Being friendly can also play a big part in scoring that good first impression in the workplace. When you get the opportunity to get to know and talk to people, don’t lose the chance and do so.
Accept that lunch invitation. It’s a no-brainer. On your first day at work, you would be lucky to score a invite to lunch from your boss or your co-workers. So, if you do, don’t ever say no! It’s your lucky day!