To sign 'Jennifer', you will fingerspell the name using the ASL alphabet: J-E-N-N-I-F-E-R. Hold your dominant hand at about shoulder height with your palm facing outward. Form each letter clearly, and for the double 'N', give the 'N' handshape a slight bounce or slide it slightly to the side to indicate the repeated letter.
Sign 'HELLO', then 'MY NAME', and smoothly fingerspell J-E-N-N-I-F-E-R.
Fingerspell J-E-N-N-I-F-E-R, then sign 'HERE' and 'TODAY' while raising your eyebrows to indicate a yes/no question.
Point to yourself for 'I', sign 'LOOK-FOR' by moving a 'C' handshape in a circle in front of your face, and then fingerspell J-E-N-N-I-F-E-R.
Sign 'HELLO', then 'MY NAME', and smoothly fingerspell J-E-N-N-I-F-E-R.
Fingerspell J-E-N-N-I-F-E-R, then sign 'HERE' and 'TODAY' while raising your eyebrows to indicate a yes/no question.
Point to yourself for 'I', sign 'LOOK-FOR' by moving a 'C' handshape in a circle in front of your face, and then fingerspell J-E-N-N-I-F-E-R.
No, there is no universal sign for the name Jennifer. Like most proper names, it is fingerspelled. A specific person named Jennifer might have a personal 'name sign' given to her by Deaf friends, but you would still fingerspell her name when first introducing her.
To indicate a double letter in ASL, you don't need to form the letter twice from scratch. Instead, form the 'N' handshape and either give it a gentle bounce or slide it slightly outward to the side.
Yes, when introducing yourself to someone new, you should always fingerspell your name. If you have a name sign, you would fingerspell your name first, and then demonstrate your name sign.
