Extracuericulars from 3rd semester for transfer

I will be submitting transfer applications to UC’s and CSU’s in fall of 2020. Would it make sense to start a major related extracurricular during that fall semester? I won’t be able to do it in the spring. It has to be in fall. Will they even consider it on the transfer application since I won’t have been doing it for a full semester? Thanks in advance.

It is probably a good idea in that it will help you better understand the profession and make you a more attractive post-college hire but, i don’t think it will have a big impact on transfer admission.