Is playful physical contact usually flirtatious?

There’s this girl I work with who I kinda like has and she’s been acting sort of flirty with me for the past few months (teasing me, laughing at everything I say, copying a lot of slang I use, etc…)

Anyway, yesterday I teased her about something and she started laughing, grabbed a sticker and slapped in on my arm. Is this usually seen as flirtatious? I’ve never seen her do that with another coworker either

Yeah it’s probably flirtatious
Nah
Other
Select gender and age to cast your vote:
Is playful physical contact usually flirtatious?
Post Opinion