Be good at your job – prove that you can do it and do it well. Take pride in paying attention to detail - be mindful about this. Part of being professional is getting on with the job - no delays, no excuses. Who do you need to speak to? What do you need to do and how are you going to do it? It's all about getting the job done well.
If you need to develop particular skills to do the job, acquire them – formally through classes or informally by asking for peer support or accessing online resources.
Be reliable – make sure your line manager knows that you will show up and be actively present. It’s all part of having a professional attitude. Turn up to work on time, deliver tasks and projects on time, prepare for meetings and get there on time.
Treat everyone with respect. Always be friendly and courteous. Try not to be negative - it can become a habit and not an attractive one.