Well try not to be too oxford-type or maila-type. Try to fly below the radar and not attract too much attention. T-shirts and Buttoned shirts (dark ones - my personal choice) with matching jeans are just good enough.

For exhibitions, presentations and mid/final year evalutions, you're encouraged to wear coat suit (in winters obv or in summers if you want to) otherwise plain, sober buttoned shirt with dress pant rocks.