Sexy screen siren Eva Mendes, who was booked under an alias, got her hair blown out at Richard Nicholos Salon (1716 Sansom) earlier this afternoon. No word on why the actress is in toown...Also this afternoon Upper Darby native actor Jamie Kennedy and girlfriend Jennifer Love Hewitt acted "very lovey dovey," says our spy, while waiting in line for coffee at Starbucks at the Phoenix (16th & Arch). Love Hewitt paid and left a very nice tip.