To sign the name 'Bianca', you will fingerspell each letter: B-I-A-N-C-A. Hold your dominant hand up near your shoulder with your palm facing outward. Form the letter 'B', then transition smoothly into 'I', 'A', 'N', 'C', and finally 'A', keeping your hand steady in one place as you spell.
Sign 'MY', 'FRIEND', 'NAME', and then fingerspell B-I-A-N-C-A clearly.
Fingerspell B-I-A-N-C-A, then sign 'HERE' and 'TODAY' while raising your eyebrows to indicate a yes/no question.
Sign 'I', 'NEED', 'TALK', and then fingerspell B-I-A-N-C-A to specify who you are talking about.
Sign 'MY', 'FRIEND', 'NAME', and then fingerspell B-I-A-N-C-A clearly.
Fingerspell B-I-A-N-C-A, then sign 'HERE' and 'TODAY' while raising your eyebrows to indicate a yes/no question.
Sign 'I', 'NEED', 'TALK', and then fingerspell B-I-A-N-C-A to specify who you are talking about.
Yes, unless you are referring to a specific person named Bianca who has a unique name sign given to them by Deaf peers, you should always fingerspell the name.
It is common and helpful to gently mouth the full word 'Bianca' (rather than mouthing the individual letters B-I-A-N-C-A) while you are fingerspelling it to provide extra context.
As a beginner, you should prioritize a smooth, steady pace over speed. It is much better to fingerspell slowly and clearly so your conversation partner can easily catch the name.
