Some interesting ideas to consider when trying to sell yourself. Avoid the clichés and don't be too vague. Brand yourself for the specific job you want, not any old job. Perhaps most importantly use 'I' and tell prospective employers a bit about you as a person in order to stand out from other candidates.
Use the word "I" the way humans beings do when they talk about themselves. You aren't bragging or giving yourself a made-up title like Best Technical Salesperson in Chicago. You aren't listing the tasks you know how to perform. You're just telling a bit of your human story so we can understand who you are and what you do professionally.