Background: I'm planning to attend graduate school for CS at a school (UT Austin) where state residents pay significantly less tuition. Therefore, I will move to the city where the university is 16 months in advance of applying. I am planning on first applying to a Master's program to gain research experience and boost my credentials.
I want to do research with a certain professor at this university before applying to the Master's program.
Question: What can a non-enrolled student with only a bachelor's degree do to improve his/her chances of being able to do research with a professor to boost the student's resume for graduate admissions?
I.e., replicate his important research, try to publish in his area of research, use my university email so it's less likely to be treated as spam, have a professor I'm doing research with beforehand reach out (while continuing research with this professor), etc?
Edit: Well, I've been trying to get undergrad research as a distance learning student right now and I haven't gotten any response back yet. I wonder if it'll be even harder after I graduate.