"Making a pass at" is a phrase that typically refers to an attempt to initiate romantic or sexual advances towards another person. There are several other terms that can be used as synonyms for this phrase, including "flirting with", "coming on to", "making a move on", "hitting on", "making advances towards" or "wooing". Each of these phrases carries a slightly different connotation and may be more or less appropriate in different contexts. Regardless of the specific phrase used, it is always important to respect other people's boundaries and be mindful of their feelings and comfort levels.