HR is one of the most dynamic fields around and perhaps one with the lowest professional barrier required to enter, so don't fret too much about experience, especially at your level!
Perhaps you can start by talking to your HR team over at your current place of employment, also perhaps inquire if you are able to shadow them or even internally move to HR as part of our career development.
Expanding your network circle also helps. Whilst having HR experience in certain roles are certainly an advantage, one's passion, commitment, adaptability and willingness to learn is just as crucial to succeed and impress in any role, and HR is no different.
Start by actually applying to the roles you find interesting in HR, but not before doing your own research as to what the role entails (for example, how recruitment is different than Talent Management, How Payroll is different from Compensation) to see if its something that can actually maximise your strengths and potential. Be frank about your lack of exposure to HR, but at the same time also be able to express what you have learned about the role and how your current experience and strengths can lend towards succeeding in that role.
I always find that knowledge can be taught and skills can be learned but the drive and energy to succeed can only come from the individual. I have stopped asking about one's qualifications or current job when interviewing them, especially in the more junior roles but would spend more time engaging on what they, as a talent and individual, can bring to the table and drive the team forward.