pick up

I pick up a coin.

私は硬貨を拾います

I happen to pick up a coin.

私は偶然硬貨を拾います

I happen to pick up a coin at the park.

私は公園で偶然硬貨を拾います

I happen to pick up a coin at the park this morning.

私は今朝公園で偶然硬貨を拾います

I happen to pick up a coin at the park this morning with my friend.

私は友達と今朝公園で偶然硬貨を拾います