#1 Observe punctuality. Never come late to work especially on your first day. Don't come too early though as your co-workers may not yet be ready to receive you.
#2 Know the logistics of the place. Locate the amenities: rest rooms, the coffee-making facilities, pantry, cafeteria, etc.
#3 Smile at everyone. Try your best to meet everyone, learn their names and let them know who you are.
#4 Quickly learn your work email address, people's names, job titles, where everyone's desks are located.
#5 Take down notes. Have a notebook and pen ready all the time. Write all the important points as your seniors teach you procedures and other information about accomplishing certain tasks.
#6 Show enthusiasm but don't be desperate to please everyone. Your boss and senior co-workers will know if you're taking in a lot of task beyond your capabilities.
#7 Admit mistakes immediately. - Mistakes are inevitable especially in the case of newbies like you. Never cover up your mistakes. This will annoy your co-workers. This will also cause a lot of stress on you. Be honest with your mistakes so you can get helped and to avoid big problems.
#8 Keep your own counsel. Be careful not to be close to anyone right away. Resist the temptation to criticize or complain about your work or other co-workers and managers. If senior co-workers are airing their grievances, don't join them and just keep your mouth shut.
