for each transaction, you will get a payload returned. The transaction response contains a set of TLVs that explains this particular transaction. One of the TLVs (9F39) is Point of Service (POS) entry mode, which indicates the method by which the PAN was entered.
description of tag 9F39 is as following.
90h = Magnetic Stripe Reader Swipe
91h = Contactless MSD
05h = Contact EMV
07h = Contactless EMV
80h = Contact Fallback to Magnetic Stripe