Book lightweight not serious (she adds nervously in case you are all great literature fans).
Back to DC and work experience. I don't think it matters for many universities but for other roles it does. I sometimes interview undergraduates for internships and graduates for very competitive roles. They all have or are doing excellant degrees. The roles involve a lot of dealing with people (health). The only thing to distunguish them really is their work experience or volunteering.
Any work experience is helpful. Someone rightly said that in a day on customer services at B&Q she had to deal with all sorts. Someone else said they had no relevant work experience but I adked her to tell me about difficult situations she had dealt with working in the bar of a big sports stadium. She was a bit shy but I gave her a chance and she did really well.
I'm also more impressed by local, longer term volunteering than by a week doing travel volunteering abroad. I think you can learn loads from say, helping at a local Brownie pack, every week (team work, safeguarding, planning etc) and it shows you can be reliable.