How should I ask out my coworker?

She’s 25 I’m 20 but she’s always flirty (as far as I perceive) and recently unfollowed her boyfriend of seven years on instagram and untagged herself from his photos? He still follows her and has a bunch of photos of her up so I’m not sure if she’s single or not. When we first started working she told me I should be a model and that she was in the relationship just out of intertia. I’m not a touchy person but she’ll often go out of her way to put her hand on my shoulder for example and give me compliment’s. I know she likes hikes and the gym and bad bunny and cats (not dogs as much tho) and cute stickers and she’s always pretty goofy silly and we laugh a lot together. She knows I’m bi tho so I’m not sure if she just sees me as a gay best friend or is actually interested, especially with the age gap, us being coworkers, and her (likely) just getting out of a relationship. She works mornings and I work evenings so I only ever see her a few combined hours each week. We send memes on isnta some times too and I got her some edibles for her birthday bout a few weeks ago.

Edit: I’m not interested in anything serious and I doubt she would, and I would also be interested in being her friend regardless of anything physical or romantic