How can I become recognized by a professor?

Imad had a great answer--be engaged academically. I would add that if there is a professor whose work you like, you should try to do some research in his or her group. That will be the best preparation for graduate school, as doing research for a professor is the core of graduate school, at least in the sciences.

Teachers and professors have a wide variety of responsibilities, including developing classroom curricula, teaching courses, proctoring exams and helping guide students toward academic success. Although all teachers have the same basic work functions, their jobs may vary significantly depending on their classroom placement and specialty.

Hi Kemi, easy: you need to show academic engagement from your side. Make sure to attend the classes, do your homework, and drop by their open office hours to discuss what you learned in class. If you show that you are interested and have good grades to prove it, then you can be sure that your Professors will notice you, remember who you are, and write you good recommendation letters. Good luck!

Be kind, say thank you, put in a lot of hard work, raise you hand, participate, do the reading, and write essays that show you put effort and insight in, go to office hours, email them, communicate with them!