It is recognised that not everyone will be able to secure medical work experience, and that it is possible to get the same outlook, experience and qualities by doing work experience in a non-medical environment too. For example, working in a hospital shop will mean that you deal with all kinds of patients and people and allow you to develop your communication skills, teamwork skills, following instructions, and leadership skills.
Another area where you can show ability and understanding of what medicine is all about and that you can deliver care and compassion is if you happen to have a family member that is ill or elderly with multiple health complaints. If you have been involved in their care then you will have realised that they are vulnerable, that they need to have their dignity maintained.
By bringing these characteristics together and being able to demonstrate that you have them, it will show that you have an understanding of what it means to be a good doctor and will be able to cope with the study and practice of medicine.