If you smile, hold his gaze, or respond with a similar gesture, he’ll likely take that as a sign to keep going. But if you pull away or seem uncomfortable, a respectful guy will usually pick up on that and back off.

“I’m hoping for more intimacy.”
In some situations, especially during a romantic date or after a night out, touching your leg could be a signal that he’s interested in getting physically closer — not just in a casual way.
It may be his quiet suggestion that he’s thinking beyond the moment and hoping things will progress once you’re alone together.
“I’m here for you.”
Touch can also be a form of emotional support. When someone you care about is opening up or going through a hard time, a reassuring touch on the leg might simply mean, “I’ve got your back.” It doesn’t always have to be romantic — it could be his way of offering comfort and letting you know he’s present and listening.
“It might’ve been unintentional.”
Of course, there’s always a chance that the touch wasn’t meant to mean anything at all. He might’ve been shifting around or accidentally reached in the wrong direction.
If it was a mistake, don’t worry — if he’s interested, he’ll likely show it in other ways, like leaning in closer, finding reasons to touch your hand, or complimenting you often.

“We’re just close friends.”
Affectionate touches aren’t reserved for romantic relationships. Good friends and even family members often show platonic affection through casual physical contact — like a pat on the back or a hug.
If he’s someone you’ve known for a while and he also touches your arm, shoulder, or gives you friendly hugs, the leg touch might not carry romantic meaning. Still, if you’re wondering if friendship could be turning into something more, look for signs like him teasing you playfully, complimenting you often, or touching more personal areas like your hair or face.
Ultimately, context is everything. His body language, your dynamic, and how you both react will say far more than the gesture alone ever could.