He comes here everyday, plugs his phone in, but never buys anything. Doesn't he care about all the people staring at him?
この場合、次のような言い方ができますよ。
ーHe comes here everyday, plugs his phone in, but never buys anything. Doesn't he care about all the people staring at him?
「彼は毎日ここに来て、携帯の充電をするけど何も買わない。みんなからの視線が気にならないのかな?」
ご参考まで!